Finding the Fourth Proportional to 91,808.10, 137,744.55 and 88,568.10

Step by Step Solution

1. Step 1: Write the proportion equation
   91,808.10 : 137,744.55 = 88,568.10 : x
2. Step 2: Convert to fraction form
   91,808.10/137,744.55 = 88,568.10/x
3. Step 3: Cross multiply
   91,808.10x = 137,744.55 × 88,568.10
4. Step 4: Simplify right side
   91,808.10x = 12,199,773,078.86
5. Step 5: Solve for x
   x = 12,199,773,078.86/91,808.10
6. Step 6: Final answer
   x = 132,883.41