Finding the Fourth Proportional to 10,937.28, 16,403.52 and 3,144

Step by Step Solution

1. Step 1: Write the proportion equation
   10,937.28 : 16,403.52 = 3,144 : x
2. Step 2: Convert to fraction form
   10,937.28/16,403.52 = 3,144/x
3. Step 3: Cross multiply
   10,937.28x = 16,403.52 × 3,144
4. Step 4: Simplify right side
   10,937.28x = 51,572,666.88
5. Step 5: Solve for x
   x = 51,572,666.88/10,937.28
6. Step 6: Final answer
   x = 4,715.31