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Finding the Fourth Proportional to 117,478.06, 162,081.13 and 66,485.72

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Solution

The fourth proportional to 117,478.06, 162,081.13 and 66,485.72 is: 91,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,478.06 : 162,081.13 = 66,485.72 : x
  2. Step 2: Convert to fraction form
    117,478.06/162,081.13 = 66,485.72/x
  3. Step 3: Cross multiply
    117,478.06x = 162,081.13 × 66,485.72
  4. Step 4: Simplify right side
    117,478.06x = 10,776,080,294.04
  5. Step 5: Solve for x
    x = 10,776,080,294.04/117,478.06
  6. Step 6: Final answer
    x = 91,728.45

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