Finding the Fourth Proportional to 94,575.40, 141,340.37 and 89,112.68

Step by Step Solution

1. Step 1: Write the proportion equation
   94,575.40 : 141,340.37 = 89,112.68 : x
2. Step 2: Convert to fraction form
   94,575.40/141,340.37 = 89,112.68/x
3. Step 3: Cross multiply
   94,575.40x = 141,340.37 × 89,112.68
4. Step 4: Simplify right side
   94,575.40x = 12,595,219,162.89
5. Step 5: Solve for x
   x = 12,595,219,162.89/94,575.40
6. Step 6: Final answer
   x = 133,176.48