Finding the Fourth Proportional to 94,478.40, 141,678.72 and 74,805.12

Step by Step Solution

1. Step 1: Write the proportion equation
   94,478.40 : 141,678.72 = 74,805.12 : x
2. Step 2: Convert to fraction form
   94,478.40/141,678.72 = 74,805.12/x
3. Step 3: Cross multiply
   94,478.40x = 141,678.72 × 74,805.12
4. Step 4: Simplify right side
   94,478.40x = 10,598,293,651.05
5. Step 5: Solve for x
   x = 10,598,293,651.05/94,478.40
6. Step 6: Final answer
   x = 112,176.90