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Finding the Fourth Proportional to 18,703.04, 28,048.98 and 15,407.96

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Solution

The fourth proportional to 18,703.04, 28,048.98 and 15,407.96 is: 23,107.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,703.04 : 28,048.98 = 15,407.96 : x
  2. Step 2: Convert to fraction form
    18,703.04/28,048.98 = 15,407.96/x
  3. Step 3: Cross multiply
    18,703.04x = 28,048.98 × 15,407.96
  4. Step 4: Simplify right side
    18,703.04x = 432,177,561.88
  5. Step 5: Solve for x
    x = 432,177,561.88/18,703.04
  6. Step 6: Final answer
    x = 23,107.34

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