Finding the Fourth Proportional to 132,545.87, 182,913.69 and 72,116.53

Step by Step Solution

1. Step 1: Write the proportion equation
   132,545.87 : 182,913.69 = 72,116.53 : x
2. Step 2: Convert to fraction form
   132,545.87/182,913.69 = 72,116.53/x
3. Step 3: Cross multiply
   132,545.87x = 182,913.69 × 72,116.53
4. Step 4: Simplify right side
   132,545.87x = 13,191,100,425.45
5. Step 5: Solve for x
   x = 13,191,100,425.45/132,545.87
6. Step 6: Final answer
   x = 99,521.02