Finding the Fourth Proportional to 99,541.50, 137,367.27 and 54,829.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,541.50 : 137,367.27 = 54,829.50 : x
2. Step 2: Convert to fraction form
   99,541.50/137,367.27 = 54,829.50/x
3. Step 3: Cross multiply
   99,541.50x = 137,367.27 × 54,829.50
4. Step 4: Simplify right side
   99,541.50x = 7,531,778,730.47
5. Step 5: Solve for x
   x = 7,531,778,730.47/99,541.50
6. Step 6: Final answer
   x = 75,664.71