Finding the Fourth Proportional to 12,462.42, 17,199.17 and 7,158.95

Step by Step Solution

1. Step 1: Write the proportion equation
   12,462.42 : 17,199.17 = 7,158.95 : x
2. Step 2: Convert to fraction form
   12,462.42/17,199.17 = 7,158.95/x
3. Step 3: Cross multiply
   12,462.42x = 17,199.17 × 7,158.95
4. Step 4: Simplify right side
   12,462.42x = 123,127,876.28
5. Step 5: Solve for x
   x = 123,127,876.28/12,462.42
6. Step 6: Final answer
   x = 9,879.93