Finding the Fourth Proportional to 147,407.20, 221,144.72 and 42,227.04

Step by Step Solution

1. Step 1: Write the proportion equation
   147,407.20 : 221,144.72 = 42,227.04 : x
2. Step 2: Convert to fraction form
   147,407.20/221,144.72 = 42,227.04/x
3. Step 3: Cross multiply
   147,407.20x = 221,144.72 × 42,227.04
4. Step 4: Simplify right side
   147,407.20x = 9,338,286,937.23
5. Step 5: Solve for x
   x = 9,338,286,937.23/147,407.20
6. Step 6: Final answer
   x = 63,350.28