Finding the Fourth Proportional to 109,229.10, 150,658.52 and 72,912.26

Step by Step Solution

1. Step 1: Write the proportion equation
   109,229.10 : 150,658.52 = 72,912.26 : x
2. Step 2: Convert to fraction form
   109,229.10/150,658.52 = 72,912.26/x
3. Step 3: Cross multiply
   109,229.10x = 150,658.52 × 72,912.26
4. Step 4: Simplify right side
   109,229.10x = 10,984,852,063.60
5. Step 5: Solve for x
   x = 10,984,852,063.60/109,229.10
6. Step 6: Final answer
   x = 100,567.08