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Finding the Fourth Proportional to 124,558.40, 186,724.20 and 45,653.60

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Solution

The fourth proportional to 124,558.40, 186,724.20 and 45,653.60 is: 68,438.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,558.40 : 186,724.20 = 45,653.60 : x
  2. Step 2: Convert to fraction form
    124,558.40/186,724.20 = 45,653.60/x
  3. Step 3: Cross multiply
    124,558.40x = 186,724.20 × 45,653.60
  4. Step 4: Simplify right side
    124,558.40x = 8,524,631,937.12
  5. Step 5: Solve for x
    x = 8,524,631,937.12/124,558.40
  6. Step 6: Final answer
    x = 68,438.84

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