Finding the Fourth Proportional to 5,618.40, 7,753.82 and 3,100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,618.40 : 7,753.82 = 3,100.72 : x
2. Step 2: Convert to fraction form
   5,618.40/7,753.82 = 3,100.72/x
3. Step 3: Cross multiply
   5,618.40x = 7,753.82 × 3,100.72
4. Step 4: Simplify right side
   5,618.40x = 24,042,424.75
5. Step 5: Solve for x
   x = 24,042,424.75/5,618.40
6. Step 6: Final answer
   x = 4,279.23