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Finding the Fourth Proportional to 123,340.80, 185,011.20 and 44,457.60

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Solution

The fourth proportional to 123,340.80, 185,011.20 and 44,457.60 is: 66,686.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,340.80 : 185,011.20 = 44,457.60 : x
  2. Step 2: Convert to fraction form
    123,340.80/185,011.20 = 44,457.60/x
  3. Step 3: Cross multiply
    123,340.80x = 185,011.20 × 44,457.60
  4. Step 4: Simplify right side
    123,340.80x = 8,225,153,925.12
  5. Step 5: Solve for x
    x = 8,225,153,925.12/123,340.80
  6. Step 6: Final answer
    x = 66,686.40

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