Finding the Fourth Proportional to 88,671.85, 132,978.27 and 28,686.08

Step by Step Solution

1. Step 1: Write the proportion equation
   88,671.85 : 132,978.27 = 28,686.08 : x
2. Step 2: Convert to fraction form
   88,671.85/132,978.27 = 28,686.08/x
3. Step 3: Cross multiply
   88,671.85x = 132,978.27 × 28,686.08
4. Step 4: Simplify right side
   88,671.85x = 3,814,625,623.93
5. Step 5: Solve for x
   x = 3,814,625,623.93/88,671.85
6. Step 6: Final answer
   x = 43,019.58