Finding the Fourth Proportional to 99,483.52, 137,287.50 and 54,771.52

Step by Step Solution

1. Step 1: Write the proportion equation
   99,483.52 : 137,287.50 = 54,771.52 : x
2. Step 2: Convert to fraction form
   99,483.52/137,287.50 = 54,771.52/x
3. Step 3: Cross multiply
   99,483.52x = 137,287.50 × 54,771.52
4. Step 4: Simplify right side
   99,483.52x = 7,519,445,052
5. Step 5: Solve for x
   x = 7,519,445,052/99,483.52
6. Step 6: Final answer
   x = 75,584.83