Finding the Fourth Proportional to 12,467.68, 17,204.82 and 7,158.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,467.68 : 17,204.82 = 7,158.76 : x
2. Step 2: Convert to fraction form
   12,467.68/17,204.82 = 7,158.76/x
3. Step 3: Cross multiply
   12,467.68x = 17,204.82 × 7,158.76
4. Step 4: Simplify right side
   12,467.68x = 123,165,177.22
5. Step 5: Solve for x
   x = 123,165,177.22/12,467.68
6. Step 6: Final answer
   x = 9,878.76