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Finding the Fourth Proportional to 55,079.64, 82,617.66 and 17,639.28

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Solution

The fourth proportional to 55,079.64, 82,617.66 and 17,639.28 is: 26,458.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,079.64 : 82,617.66 = 17,639.28 : x
  2. Step 2: Convert to fraction form
    55,079.64/82,617.66 = 17,639.28/x
  3. Step 3: Cross multiply
    55,079.64x = 82,617.66 × 17,639.28
  4. Step 4: Simplify right side
    55,079.64x = 1,457,316,037.68
  5. Step 5: Solve for x
    x = 1,457,316,037.68/55,079.64
  6. Step 6: Final answer
    x = 26,458.34

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