Finding the Fourth Proportional to 12,805.02, 17,650.71 and 9,655.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,805.02 : 17,650.71 = 9,655.74 : x
2. Step 2: Convert to fraction form
   12,805.02/17,650.71 = 9,655.74/x
3. Step 3: Cross multiply
   12,805.02x = 17,650.71 × 9,655.74
4. Step 4: Simplify right side
   12,805.02x = 170,430,666.58
5. Step 5: Solve for x
   x = 170,430,666.58/12,805.02
6. Step 6: Final answer
   x = 13,309.68