Finding the Fourth Proportional to 12,731.86, 17,570.00 and 7,066.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,731.86 : 17,570.00 = 7,066.72 : x
2. Step 2: Convert to fraction form
   12,731.86/17,570.00 = 7,066.72/x
3. Step 3: Cross multiply
   12,731.86x = 17,570.00 × 7,066.72
4. Step 4: Simplify right side
   12,731.86x = 124,162,310.03
5. Step 5: Solve for x
   x = 124,162,310.03/12,731.86
6. Step 6: Final answer
   x = 9,752.09