Finding the Fourth Proportional to 5,618.66, 7,753.69 and 3,100.79

Step by Step Solution

1. Step 1: Write the proportion equation
   5,618.66 : 7,753.69 = 3,100.79 : x
2. Step 2: Convert to fraction form
   5,618.66/7,753.69 = 3,100.79/x
3. Step 3: Cross multiply
   5,618.66x = 7,753.69 × 3,100.79
4. Step 4: Simplify right side
   5,618.66x = 24,042,564.42
5. Step 5: Solve for x
   x = 24,042,564.42/5,618.66
6. Step 6: Final answer
   x = 4,279.06