Finding the Fourth Proportional to 92,452.16, 138,706.06 and 39,116.72

Step by Step Solution

1. Step 1: Write the proportion equation
   92,452.16 : 138,706.06 = 39,116.72 : x
2. Step 2: Convert to fraction form
   92,452.16/138,706.06 = 39,116.72/x
3. Step 3: Cross multiply
   92,452.16x = 138,706.06 × 39,116.72
4. Step 4: Simplify right side
   92,452.16x = 5,425,726,111.32
5. Step 5: Solve for x
   x = 5,425,726,111.32/92,452.16
6. Step 6: Final answer
   x = 58,686.85