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Finding the Fourth Proportional to 76,555.33, 105,646.68 and 42,566.92

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Solution

The fourth proportional to 76,555.33, 105,646.68 and 42,566.92 is: 58,742.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,555.33 : 105,646.68 = 42,566.92 : x
  2. Step 2: Convert to fraction form
    76,555.33/105,646.68 = 42,566.92/x
  3. Step 3: Cross multiply
    76,555.33x = 105,646.68 × 42,566.92
  4. Step 4: Simplify right side
    76,555.33x = 4,497,053,511.71
  5. Step 5: Solve for x
    x = 4,497,053,511.71/76,555.33
  6. Step 6: Final answer
    x = 58,742.53

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