Finding the Fourth Proportional to 12,704.32, 17,530.32 and 7,115.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,704.32 : 17,530.32 = 7,115.32 : x
2. Step 2: Convert to fraction form
   12,704.32/17,530.32 = 7,115.32/x
3. Step 3: Cross multiply
   12,704.32x = 17,530.32 × 7,115.32
4. Step 4: Simplify right side
   12,704.32x = 124,733,836.50
5. Step 5: Solve for x
   x = 124,733,836.50/12,704.32
6. Step 6: Final answer
   x = 9,818.22