Finding the Fourth Proportional to 10,143.57, 13,998.24 and 5,606.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,143.57 : 13,998.24 = 5,606.81 : x
2. Step 2: Convert to fraction form
   10,143.57/13,998.24 = 5,606.81/x
3. Step 3: Cross multiply
   10,143.57x = 13,998.24 × 5,606.81
4. Step 4: Simplify right side
   10,143.57x = 78,485,507.01
5. Step 5: Solve for x
   x = 78,485,507.01/10,143.57
6. Step 6: Final answer
   x = 7,737.46