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Finding the Fourth Proportional to 357,629.69, 536,444.79 and 91,390.46

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Solution

The fourth proportional to 357,629.69, 536,444.79 and 91,390.46 is: 137,085.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,629.69 : 536,444.79 = 91,390.46 : x
  2. Step 2: Convert to fraction form
    357,629.69/536,444.79 = 91,390.46/x
  3. Step 3: Cross multiply
    357,629.69x = 536,444.79 × 91,390.46
  4. Step 4: Simplify right side
    357,629.69x = 49,025,935,112.22
  5. Step 5: Solve for x
    x = 49,025,935,112.22/357,629.69
  6. Step 6: Final answer
    x = 137,085.75

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