Finding the Fourth Proportional to 12,708.55, 17,536.13 and 7,043.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,708.55 : 17,536.13 = 7,043.02 : x
2. Step 2: Convert to fraction form
   12,708.55/17,536.13 = 7,043.02/x
3. Step 3: Cross multiply
   12,708.55x = 17,536.13 × 7,043.02
4. Step 4: Simplify right side
   12,708.55x = 123,507,314.31
5. Step 5: Solve for x
   x = 123,507,314.31/12,708.55
6. Step 6: Final answer
   x = 9,718.45