Finding the Fourth Proportional to 3,715.31, 5,564.17 and 3,225.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,715.31 : 5,564.17 = 3,225.70 : x
2. Step 2: Convert to fraction form
   3,715.31/5,564.17 = 3,225.70/x
3. Step 3: Cross multiply
   3,715.31x = 5,564.17 × 3,225.70
4. Step 4: Simplify right side
   3,715.31x = 17,948,343.17
5. Step 5: Solve for x
   x = 17,948,343.17/3,715.31
6. Step 6: Final answer
   x = 4,830.91