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Finding the Fourth Proportional to 99,756.63, 137,664.09 and 57,315.06

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Solution

The fourth proportional to 99,756.63, 137,664.09 and 57,315.06 is: 79,094.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,756.63 : 137,664.09 = 57,315.06 : x
  2. Step 2: Convert to fraction form
    99,756.63/137,664.09 = 57,315.06/x
  3. Step 3: Cross multiply
    99,756.63x = 137,664.09 × 57,315.06
  4. Step 4: Simplify right side
    99,756.63x = 7,890,225,578.20
  5. Step 5: Solve for x
    x = 7,890,225,578.20/99,756.63
  6. Step 6: Final answer
    x = 79,094.75

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