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Finding the Fourth Proportional to 41,781.91, 62,660.43 and 12,191.80

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Solution

The fourth proportional to 41,781.91, 62,660.43 and 12,191.80 is: 18,284.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,781.91 : 62,660.43 = 12,191.80 : x
  2. Step 2: Convert to fraction form
    41,781.91/62,660.43 = 12,191.80/x
  3. Step 3: Cross multiply
    41,781.91x = 62,660.43 × 12,191.80
  4. Step 4: Simplify right side
    41,781.91x = 763,943,430.47
  5. Step 5: Solve for x
    x = 763,943,430.47/41,781.91
  6. Step 6: Final answer
    x = 18,284.07

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