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Finding the Fourth Proportional to 172,585.08, 258,978.24 and 72,739.08

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Solution

The fourth proportional to 172,585.08, 258,978.24 and 72,739.08 is: 109,151.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,585.08 : 258,978.24 = 72,739.08 : x
  2. Step 2: Convert to fraction form
    172,585.08/258,978.24 = 72,739.08/x
  3. Step 3: Cross multiply
    172,585.08x = 258,978.24 × 72,739.08
  4. Step 4: Simplify right side
    172,585.08x = 18,837,838,917.62
  5. Step 5: Solve for x
    x = 18,837,838,917.62/172,585.08
  6. Step 6: Final answer
    x = 109,151.03

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