Finding the Fourth Proportional to 5,329.78, 7,996.98 and 2,861.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,329.78 : 7,996.98 = 2,861.72 : x
2. Step 2: Convert to fraction form
   5,329.78/7,996.98 = 2,861.72/x
3. Step 3: Cross multiply
   5,329.78x = 7,996.98 × 2,861.72
4. Step 4: Simplify right side
   5,329.78x = 22,885,117.61
5. Step 5: Solve for x
   x = 22,885,117.61/5,329.78
6. Step 6: Final answer
   x = 4,293.82