Finding the Fourth Proportional to 147,490.32, 221,271 and 42,308.37

Step by Step Solution

1. Step 1: Write the proportion equation
   147,490.32 : 221,271 = 42,308.37 : x
2. Step 2: Convert to fraction form
   147,490.32/221,271 = 42,308.37/x
3. Step 3: Cross multiply
   147,490.32x = 221,271 × 42,308.37
4. Step 4: Simplify right side
   147,490.32x = 9,361,615,338.27
5. Step 5: Solve for x
   x = 9,361,615,338.27/147,490.32
6. Step 6: Final answer
   x = 63,472.74