Finding the Fourth Proportional to 150,312.08, 207,570.12 and 112,520.72

Step by Step Solution

1. Step 1: Write the proportion equation
   150,312.08 : 207,570.12 = 112,520.72 : x
2. Step 2: Convert to fraction form
   150,312.08/207,570.12 = 112,520.72/x
3. Step 3: Cross multiply
   150,312.08x = 207,570.12 × 112,520.72
4. Step 4: Simplify right side
   150,312.08x = 23,355,939,352.89
5. Step 5: Solve for x
   x = 23,355,939,352.89/150,312.08
6. Step 6: Final answer
   x = 155,382.98