Finding the Fourth Proportional to 102,871.91, 141,884.73 and 88,555.25

Step by Step Solution

1. Step 1: Write the proportion equation
   102,871.91 : 141,884.73 = 88,555.25 : x
2. Step 2: Convert to fraction form
   102,871.91/141,884.73 = 88,555.25/x
3. Step 3: Cross multiply
   102,871.91x = 141,884.73 × 88,555.25
4. Step 4: Simplify right side
   102,871.91x = 12,564,637,026.91
5. Step 5: Solve for x
   x = 12,564,637,026.91/102,871.91
6. Step 6: Final answer
   x = 122,138.66