Finding the Fourth Proportional to 5,223.56, 7,781.04 and 4,940.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,223.56 : 7,781.04 = 4,940.61 : x
2. Step 2: Convert to fraction form
   5,223.56/7,781.04 = 4,940.61/x
3. Step 3: Cross multiply
   5,223.56x = 7,781.04 × 4,940.61
4. Step 4: Simplify right side
   5,223.56x = 38,443,084.03
5. Step 5: Solve for x
   x = 38,443,084.03/5,223.56
6. Step 6: Final answer
   x = 7,359.56