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Finding the Fourth Proportional to 263,815.86, 395,772.99 and 86,332.59

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Solution

The fourth proportional to 263,815.86, 395,772.99 and 86,332.59 is: 129,514.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,815.86 : 395,772.99 = 86,332.59 : x
  2. Step 2: Convert to fraction form
    263,815.86/395,772.99 = 86,332.59/x
  3. Step 3: Cross multiply
    263,815.86x = 395,772.99 × 86,332.59
  4. Step 4: Simplify right side
    263,815.86x = 34,168,107,278.74
  5. Step 5: Solve for x
    x = 34,168,107,278.74/263,815.86
  6. Step 6: Final answer
    x = 129,514.99

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