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Finding the Fourth Proportional to 55,361.57, 83,055.51 and 17,921.63

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Solution

The fourth proportional to 55,361.57, 83,055.51 and 17,921.63 is: 26,886.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,361.57 : 83,055.51 = 17,921.63 : x
  2. Step 2: Convert to fraction form
    55,361.57/83,055.51 = 17,921.63/x
  3. Step 3: Cross multiply
    55,361.57x = 83,055.51 × 17,921.63
  4. Step 4: Simplify right side
    55,361.57x = 1,488,489,704.40
  5. Step 5: Solve for x
    x = 1,488,489,704.40/55,361.57
  6. Step 6: Final answer
    x = 26,886.70

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