Finding the Fourth Proportional to 124,880.52, 172,282.86 and 81,870.33

Step by Step Solution

1. Step 1: Write the proportion equation
   124,880.52 : 172,282.86 = 81,870.33 : x
2. Step 2: Convert to fraction form
   124,880.52/172,282.86 = 81,870.33/x
3. Step 3: Cross multiply
   124,880.52x = 172,282.86 × 81,870.33
4. Step 4: Simplify right side
   124,880.52x = 14,104,854,601.54
5. Step 5: Solve for x
   x = 14,104,854,601.54/124,880.52
6. Step 6: Final answer
   x = 112,946.80