Finding the Fourth Proportional to 92,725.97, 139,106.24 and 42,128.54

Step by Step Solution

1. Step 1: Write the proportion equation
   92,725.97 : 139,106.24 = 42,128.54 : x
2. Step 2: Convert to fraction form
   92,725.97/139,106.24 = 42,128.54/x
3. Step 3: Cross multiply
   92,725.97x = 139,106.24 × 42,128.54
4. Step 4: Simplify right side
   92,725.97x = 5,860,341,889.92
5. Step 5: Solve for x
   x = 5,860,341,889.92/92,725.97
6. Step 6: Final answer
   x = 63,200.66