Finding the Fourth Proportional to 9,142.24, 12,616.52 and 5,163

Step by Step Solution

1. Step 1: Write the proportion equation
   9,142.24 : 12,616.52 = 5,163 : x
2. Step 2: Convert to fraction form
   9,142.24/12,616.52 = 5,163/x
3. Step 3: Cross multiply
   9,142.24x = 12,616.52 × 5,163
4. Step 4: Simplify right side
   9,142.24x = 65,139,092.76
5. Step 5: Solve for x
   x = 65,139,092.76/9,142.24
6. Step 6: Final answer
   x = 7,125.07