Finding the Fourth Proportional to 7,321.22, 10,091.46 and 5,725.04

Step by Step Solution

1. Step 1: Write the proportion equation
   7,321.22 : 10,091.46 = 5,725.04 : x
2. Step 2: Convert to fraction form
   7,321.22/10,091.46 = 5,725.04/x
3. Step 3: Cross multiply
   7,321.22x = 10,091.46 × 5,725.04
4. Step 4: Simplify right side
   7,321.22x = 57,774,012.16
5. Step 5: Solve for x
   x = 57,774,012.16/7,321.22
6. Step 6: Final answer
   x = 7,891.31