Finding the Fourth Proportional to 7,085.31, 10,613.37 and 4,156.55

Step by Step Solution

1. Step 1: Write the proportion equation
   7,085.31 : 10,613.37 = 4,156.55 : x
2. Step 2: Convert to fraction form
   7,085.31/10,613.37 = 4,156.55/x
3. Step 3: Cross multiply
   7,085.31x = 10,613.37 × 4,156.55
4. Step 4: Simplify right side
   7,085.31x = 44,114,950.01
5. Step 5: Solve for x
   x = 44,114,950.01/7,085.31
6. Step 6: Final answer
   x = 6,226.26