Finding the Fourth Proportional to 94,218.74, 141,327.78 and 89,488.62

Step by Step Solution

1. Step 1: Write the proportion equation
   94,218.74 : 141,327.78 = 89,488.62 : x
2. Step 2: Convert to fraction form
   94,218.74/141,327.78 = 89,488.62/x
3. Step 3: Cross multiply
   94,218.74x = 141,327.78 × 89,488.62
4. Step 4: Simplify right side
   94,218.74x = 12,647,227,999.86
5. Step 5: Solve for x
   x = 12,647,227,999.86/94,218.74
6. Step 6: Final answer
   x = 134,232.62