Finding the Fourth Proportional to 12,472.31, 17,211.22 and 6,807.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,472.31 : 17,211.22 = 6,807.29 : x
2. Step 2: Convert to fraction form
   12,472.31/17,211.22 = 6,807.29/x
3. Step 3: Cross multiply
   12,472.31x = 17,211.22 × 6,807.29
4. Step 4: Simplify right side
   12,472.31x = 117,161,662.72
5. Step 5: Solve for x
   x = 117,161,662.72/12,472.31
6. Step 6: Final answer
   x = 9,393.74