Finding the Fourth Proportional to 99,523.62, 137,517.39 and 79,545.33

Step by Step Solution

1. Step 1: Write the proportion equation
   99,523.62 : 137,517.39 = 79,545.33 : x
2. Step 2: Convert to fraction form
   99,523.62/137,517.39 = 79,545.33/x
3. Step 3: Cross multiply
   99,523.62x = 137,517.39 × 79,545.33
4. Step 4: Simplify right side
   99,523.62x = 10,938,866,168.29
5. Step 5: Solve for x
   x = 10,938,866,168.29/99,523.62
6. Step 6: Final answer
   x = 109,912.26