Finding the Fourth Proportional to 125,597.71, 173,314.79 and 71,870.41

Step by Step Solution

1. Step 1: Write the proportion equation
   125,597.71 : 173,314.79 = 71,870.41 : x
2. Step 2: Convert to fraction form
   125,597.71/173,314.79 = 71,870.41/x
3. Step 3: Cross multiply
   125,597.71x = 173,314.79 × 71,870.41
4. Step 4: Simplify right side
   125,597.71x = 12,456,204,657.01
5. Step 5: Solve for x
   x = 12,456,204,657.01/125,597.71
6. Step 6: Final answer
   x = 99,175.41