Finding the Fourth Proportional to 12,731.99, 17,569.32 and 7,066.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,731.99 : 17,569.32 = 7,066.47 : x
2. Step 2: Convert to fraction form
   12,731.99/17,569.32 = 7,066.47/x
3. Step 3: Cross multiply
   12,731.99x = 17,569.32 × 7,066.47
4. Step 4: Simplify right side
   12,731.99x = 124,152,973.78
5. Step 5: Solve for x
   x = 124,152,973.78/12,731.99
6. Step 6: Final answer
   x = 9,751.26