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Finding the Fourth Proportional to 117,132.40, 175,697.07 and 28,386.68

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Solution

The fourth proportional to 117,132.40, 175,697.07 and 28,386.68 is: 42,579.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,132.40 : 175,697.07 = 28,386.68 : x
  2. Step 2: Convert to fraction form
    117,132.40/175,697.07 = 28,386.68/x
  3. Step 3: Cross multiply
    117,132.40x = 175,697.07 × 28,386.68
  4. Step 4: Simplify right side
    117,132.40x = 4,987,455,518.09
  5. Step 5: Solve for x
    x = 4,987,455,518.09/117,132.40
  6. Step 6: Final answer
    x = 42,579.64

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