Finding the Fourth Proportional to 12,633.60, 17,449.68 and 9,271.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,633.60 : 17,449.68 = 9,271.56 : x
2. Step 2: Convert to fraction form
   12,633.60/17,449.68 = 9,271.56/x
3. Step 3: Cross multiply
   12,633.60x = 17,449.68 × 9,271.56
4. Step 4: Simplify right side
   12,633.60x = 161,785,755.10
5. Step 5: Solve for x
   x = 161,785,755.10/12,633.60
6. Step 6: Final answer
   x = 12,805.99