Finding the Fourth Proportional to 12,471.31, 17,216.76 and 9,632.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,471.31 : 17,216.76 = 9,632.32 : x
2. Step 2: Convert to fraction form
   12,471.31/17,216.76 = 9,632.32/x
3. Step 3: Cross multiply
   12,471.31x = 17,216.76 × 9,632.32
4. Step 4: Simplify right side
   12,471.31x = 165,837,279.68
5. Step 5: Solve for x
   x = 165,837,279.68/12,471.31
6. Step 6: Final answer
   x = 13,297.50