Finding the Fourth Proportional to 146,061.28, 219,089.63 and 74,942.88

Step by Step Solution

1. Step 1: Write the proportion equation
   146,061.28 : 219,089.63 = 74,942.88 : x
2. Step 2: Convert to fraction form
   146,061.28/219,089.63 = 74,942.88/x
3. Step 3: Cross multiply
   146,061.28x = 219,089.63 × 74,942.88
4. Step 4: Simplify right side
   146,061.28x = 16,419,207,850.33
5. Step 5: Solve for x
   x = 16,419,207,850.33/146,061.28
6. Step 6: Final answer
   x = 112,413.15