Finding the Fourth Proportional to 7,223.55, 10,851.53 and 7,029.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,223.55 : 10,851.53 = 7,029.15 : x
2. Step 2: Convert to fraction form
   7,223.55/10,851.53 = 7,029.15/x
3. Step 3: Cross multiply
   7,223.55x = 10,851.53 × 7,029.15
4. Step 4: Simplify right side
   7,223.55x = 76,276,996.95
5. Step 5: Solve for x
   x = 76,276,996.95/7,223.55
6. Step 6: Final answer
   x = 10,559.49