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Finding the Fourth Proportional to 76,296.74, 105,288.98 and 42,305.21

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Solution

The fourth proportional to 76,296.74, 105,288.98 and 42,305.21 is: 58,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,296.74 : 105,288.98 = 42,305.21 : x
  2. Step 2: Convert to fraction form
    76,296.74/105,288.98 = 42,305.21/x
  3. Step 3: Cross multiply
    76,296.74x = 105,288.98 × 42,305.21
  4. Step 4: Simplify right side
    76,296.74x = 4,454,272,422.07
  5. Step 5: Solve for x
    x = 4,454,272,422.07/76,296.74
  6. Step 6: Final answer
    x = 58,380.90

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