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Finding the Fourth Proportional to 105,547.12, 145,592.04 and 91,375.36

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Solution

The fourth proportional to 105,547.12, 145,592.04 and 91,375.36 is: 126,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,547.12 : 145,592.04 = 91,375.36 : x
  2. Step 2: Convert to fraction form
    105,547.12/145,592.04 = 91,375.36/x
  3. Step 3: Cross multiply
    105,547.12x = 145,592.04 × 91,375.36
  4. Step 4: Simplify right side
    105,547.12x = 13,303,525,068.13
  5. Step 5: Solve for x
    x = 13,303,525,068.13/105,547.12
  6. Step 6: Final answer
    x = 126,043.47

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