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Finding the Fourth Proportional to 87,588, 131,402.70 and 28,423.56

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Solution

The fourth proportional to 87,588, 131,402.70 and 28,423.56 is: 42,642.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,588 : 131,402.70 = 28,423.56 : x
  2. Step 2: Convert to fraction form
    87,588/131,402.70 = 28,423.56/x
  3. Step 3: Cross multiply
    87,588x = 131,402.70 × 28,423.56
  4. Step 4: Simplify right side
    87,588x = 3,734,932,527.61
  5. Step 5: Solve for x
    x = 3,734,932,527.61/87,588
  6. Step 6: Final answer
    x = 42,642.06

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