Finding the Fourth Proportional to 125,914.82, 173,760.30 and 72,196.61

Step by Step Solution

1. Step 1: Write the proportion equation
   125,914.82 : 173,760.30 = 72,196.61 : x
2. Step 2: Convert to fraction form
   125,914.82/173,760.30 = 72,196.61/x
3. Step 3: Cross multiply
   125,914.82x = 173,760.30 × 72,196.61
4. Step 4: Simplify right side
   125,914.82x = 12,544,903,743.78
5. Step 5: Solve for x
   x = 12,544,903,743.78/125,914.82
6. Step 6: Final answer
   x = 99,630.09