Finding the Fourth Proportional to 12,752.16, 17,597.79 and 7,086.87

Step by Step Solution

1. Step 1: Write the proportion equation
   12,752.16 : 17,597.79 = 7,086.87 : x
2. Step 2: Convert to fraction form
   12,752.16/17,597.79 = 7,086.87/x
3. Step 3: Cross multiply
   12,752.16x = 17,597.79 × 7,086.87
4. Step 4: Simplify right side
   12,752.16x = 124,713,250.02
5. Step 5: Solve for x
   x = 124,713,250.02/12,752.16
6. Step 6: Final answer
   x = 9,779.77