Finding the Fourth Proportional to 12,731.74, 17,569.83 and 7,066.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,731.74 : 17,569.83 = 7,066.57 : x
2. Step 2: Convert to fraction form
   12,731.74/17,569.83 = 7,066.57/x
3. Step 3: Cross multiply
   12,731.74x = 17,569.83 × 7,066.57
4. Step 4: Simplify right side
   12,731.74x = 124,158,433.58
5. Step 5: Solve for x
   x = 124,158,433.58/12,731.74
6. Step 6: Final answer
   x = 9,751.88