Finding the Fourth Proportional to 88,641.60, 132,851.69 and 56,967.36

Step by Step Solution

1. Step 1: Write the proportion equation
   88,641.60 : 132,851.69 = 56,967.36 : x
2. Step 2: Convert to fraction form
   88,641.60/132,851.69 = 56,967.36/x
3. Step 3: Cross multiply
   88,641.60x = 132,851.69 × 56,967.36
4. Step 4: Simplify right side
   88,641.60x = 7,568,209,101.74
5. Step 5: Solve for x
   x = 7,568,209,101.74/88,641.60
6. Step 6: Final answer
   x = 85,379.88