Finding the Fourth Proportional to 7,085.31, 10,613.36 and 4,156.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,085.31 : 10,613.36 = 4,156.56 : x
2. Step 2: Convert to fraction form
   7,085.31/10,613.36 = 4,156.56/x
3. Step 3: Cross multiply
   7,085.31x = 10,613.36 × 4,156.56
4. Step 4: Simplify right side
   7,085.31x = 44,115,046.86
5. Step 5: Solve for x
   x = 44,115,046.86/7,085.31
6. Step 6: Final answer
   x = 6,226.27