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Finding the Fourth Proportional to 76,080, 104,990.76 and 42,546

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Solution

The fourth proportional to 76,080, 104,990.76 and 42,546 is: 58,713.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,080 : 104,990.76 = 42,546 : x
  2. Step 2: Convert to fraction form
    76,080/104,990.76 = 42,546/x
  3. Step 3: Cross multiply
    76,080x = 104,990.76 × 42,546
  4. Step 4: Simplify right side
    76,080x = 4,466,936,874.96
  5. Step 5: Solve for x
    x = 4,466,936,874.96/76,080
  6. Step 6: Final answer
    x = 58,713.68

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