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Finding the Fourth Proportional to 172,409.04, 258,623.28 and 54,077.76

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Solution

The fourth proportional to 172,409.04, 258,623.28 and 54,077.76 is: 81,119.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,409.04 : 258,623.28 = 54,077.76 : x
  2. Step 2: Convert to fraction form
    172,409.04/258,623.28 = 54,077.76/x
  3. Step 3: Cross multiply
    172,409.04x = 258,623.28 × 54,077.76
  4. Step 4: Simplify right side
    172,409.04x = 13,985,767,666.25
  5. Step 5: Solve for x
    x = 13,985,767,666.25/172,409.04
  6. Step 6: Final answer
    x = 81,119.69

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