Finding the Fourth Proportional to 12,447.33, 17,177.15 and 6,782.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,447.33 : 17,177.15 = 6,782.31 : x
2. Step 2: Convert to fraction form
   12,447.33/17,177.15 = 6,782.31/x
3. Step 3: Cross multiply
   12,447.33x = 17,177.15 × 6,782.31
4. Step 4: Simplify right side
   12,447.33x = 116,500,773.17
5. Step 5: Solve for x
   x = 116,500,773.17/12,447.33
6. Step 6: Final answer
   x = 9,359.50