Finding the Fourth Proportional to 88,471.59, 132,065.87 and 81,886.22

Step by Step Solution

1. Step 1: Write the proportion equation
   88,471.59 : 132,065.87 = 81,886.22 : x
2. Step 2: Convert to fraction form
   88,471.59/132,065.87 = 81,886.22/x
3. Step 3: Cross multiply
   88,471.59x = 132,065.87 × 81,886.22
4. Step 4: Simplify right side
   88,471.59x = 10,814,374,885.31
5. Step 5: Solve for x
   x = 10,814,374,885.31/88,471.59
6. Step 6: Final answer
   x = 122,235.57