Finding the Fourth Proportional to 221,641.56, 332,469.06 and 71,877.72

Step by Step Solution

1. Step 1: Write the proportion equation
   221,641.56 : 332,469.06 = 71,877.72 : x
2. Step 2: Convert to fraction form
   221,641.56/332,469.06 = 71,877.72/x
3. Step 3: Cross multiply
   221,641.56x = 332,469.06 × 71,877.72
4. Step 4: Simplify right side
   221,641.56x = 23,897,118,003.34
5. Step 5: Solve for x
   x = 23,897,118,003.34/221,641.56
6. Step 6: Final answer
   x = 107,818.76