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Finding the Fourth Proportional to 105,659.87, 145,797.64 and 66,882.53

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Solution

The fourth proportional to 105,659.87, 145,797.64 and 66,882.53 is: 92,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,659.87 : 145,797.64 = 66,882.53 : x
  2. Step 2: Convert to fraction form
    105,659.87/145,797.64 = 66,882.53/x
  3. Step 3: Cross multiply
    105,659.87x = 145,797.64 × 66,882.53
  4. Step 4: Simplify right side
    105,659.87x = 9,751,315,228.52
  5. Step 5: Solve for x
    x = 9,751,315,228.52/105,659.87
  6. Step 6: Final answer
    x = 92,289.68

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