Finding the Fourth Proportional to 112,618.72, 155,235.18 and 88,707.52

Step by Step Solution

1. Step 1: Write the proportion equation
   112,618.72 : 155,235.18 = 88,707.52 : x
2. Step 2: Convert to fraction form
   112,618.72/155,235.18 = 88,707.52/x
3. Step 3: Cross multiply
   112,618.72x = 155,235.18 × 88,707.52
4. Step 4: Simplify right side
   112,618.72x = 13,770,527,834.55
5. Step 5: Solve for x
   x = 13,770,527,834.55/112,618.72
6. Step 6: Final answer
   x = 122,275.66