Finding the Fourth Proportional to 147,384.56, 221,083.80 and 42,218.96

Step by Step Solution

1. Step 1: Write the proportion equation
   147,384.56 : 221,083.80 = 42,218.96 : x
2. Step 2: Convert to fraction form
   147,384.56/221,083.80 = 42,218.96/x
3. Step 3: Cross multiply
   147,384.56x = 221,083.80 × 42,218.96
4. Step 4: Simplify right side
   147,384.56x = 9,333,928,108.85
5. Step 5: Solve for x
   x = 9,333,928,108.85/147,384.56
6. Step 6: Final answer
   x = 63,330.43