Finding the Fourth Proportional to 112,616.72, 155,232.42 and 88,705.52

Step by Step Solution

1. Step 1: Write the proportion equation
   112,616.72 : 155,232.42 = 88,705.52 : x
2. Step 2: Convert to fraction form
   112,616.72/155,232.42 = 88,705.52/x
3. Step 3: Cross multiply
   112,616.72x = 155,232.42 × 88,705.52
4. Step 4: Simplify right side
   112,616.72x = 13,769,972,536.96
5. Step 5: Solve for x
   x = 13,769,972,536.96/112,616.72
6. Step 6: Final answer
   x = 122,272.90