Finding the Fourth Proportional to 147,901.98, 221,865.12 and 42,721.86

Step by Step Solution

1. Step 1: Write the proportion equation
   147,901.98 : 221,865.12 = 42,721.86 : x
2. Step 2: Convert to fraction form
   147,901.98/221,865.12 = 42,721.86/x
3. Step 3: Cross multiply
   147,901.98x = 221,865.12 × 42,721.86
4. Step 4: Simplify right side
   147,901.98x = 9,478,490,595.52
5. Step 5: Solve for x
   x = 9,478,490,595.52/147,901.98
6. Step 6: Final answer
   x = 64,086.30