Finding the Fourth Proportional to 9,143.01, 12,616.63 and 5,164.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,143.01 : 12,616.63 = 5,164.49 : x
2. Step 2: Convert to fraction form
   9,143.01/12,616.63 = 5,164.49/x
3. Step 3: Cross multiply
   9,143.01x = 12,616.63 × 5,164.49
4. Step 4: Simplify right side
   9,143.01x = 65,158,478.10
5. Step 5: Solve for x
   x = 65,158,478.10/9,143.01
6. Step 6: Final answer
   x = 7,126.59