Finding the Fourth Proportional to 147,399.30, 221,142.33 and 47,557.62

Step by Step Solution

1. Step 1: Write the proportion equation
   147,399.30 : 221,142.33 = 47,557.62 : x
2. Step 2: Convert to fraction form
   147,399.30/221,142.33 = 47,557.62/x
3. Step 3: Cross multiply
   147,399.30x = 221,142.33 × 47,557.62
4. Step 4: Simplify right side
   147,399.30x = 10,517,002,896.05
5. Step 5: Solve for x
   x = 10,517,002,896.05/147,399.30
6. Step 6: Final answer
   x = 71,350.43