Finding the Fourth Proportional to 124,782.59, 172,200.67 and 70,335.61

Step by Step Solution

1. Step 1: Write the proportion equation
   124,782.59 : 172,200.67 = 70,335.61 : x
2. Step 2: Convert to fraction form
   124,782.59/172,200.67 = 70,335.61/x
3. Step 3: Cross multiply
   124,782.59x = 172,200.67 × 70,335.61
4. Step 4: Simplify right side
   124,782.59x = 12,111,838,560.52
5. Step 5: Solve for x
   x = 12,111,838,560.52/124,782.59
6. Step 6: Final answer
   x = 97,063.53