Finding the Fourth Proportional to 7,225.22, 10,830.24 and 3,522.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,225.22 : 10,830.24 = 3,522.31 : x
2. Step 2: Convert to fraction form
   7,225.22/10,830.24 = 3,522.31/x
3. Step 3: Cross multiply
   7,225.22x = 10,830.24 × 3,522.31
4. Step 4: Simplify right side
   7,225.22x = 38,147,435.58
5. Step 5: Solve for x
   x = 38,147,435.58/7,225.22
6. Step 6: Final answer
   x = 5,279.76