Finding the Fourth Proportional to 671,141.59, 1,006,870.04 and 221,862.42

Step by Step Solution

1. Step 1: Write the proportion equation
   671,141.59 : 1,006,870.04 = 221,862.42 : x
2. Step 2: Convert to fraction form
   671,141.59/1,006,870.04 = 221,862.42/x
3. Step 3: Cross multiply
   671,141.59x = 1,006,870.04 × 221,862.42
4. Step 4: Simplify right side
   671,141.59x = 223,386,621,838.72
5. Step 5: Solve for x
   x = 223,386,621,838.72/671,141.59
6. Step 6: Final answer
   x = 332,845.75