Finding the Fourth Proportional to 9,945.68, 13,723.52 and 5,753.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.68 : 13,723.52 = 5,753.12 : x
2. Step 2: Convert to fraction form
   9,945.68/13,723.52 = 5,753.12/x
3. Step 3: Cross multiply
   9,945.68x = 13,723.52 × 5,753.12
4. Step 4: Simplify right side
   9,945.68x = 78,953,057.38
5. Step 5: Solve for x
   x = 78,953,057.38/9,945.68
6. Step 6: Final answer
   x = 7,938.43