Finding the Fourth Proportional to 94,574.40, 141,338.88 and 89,111.68

Step by Step Solution

1. Step 1: Write the proportion equation
   94,574.40 : 141,338.88 = 89,111.68 : x
2. Step 2: Convert to fraction form
   94,574.40/141,338.88 = 89,111.68/x
3. Step 3: Cross multiply
   94,574.40x = 141,338.88 × 89,111.68
4. Step 4: Simplify right side
   94,574.40x = 12,594,945,046.12
5. Step 5: Solve for x
   x = 12,594,945,046.12/94,574.40
6. Step 6: Final answer
   x = 133,174.99