Finding the Fourth Proportional to 10,434.78, 14,400.12 and 5,718.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.78 : 14,400.12 = 5,718.96 : x
2. Step 2: Convert to fraction form
   10,434.78/14,400.12 = 5,718.96/x
3. Step 3: Cross multiply
   10,434.78x = 14,400.12 × 5,718.96
4. Step 4: Simplify right side
   10,434.78x = 82,353,710.28
5. Step 5: Solve for x
   x = 82,353,710.28/10,434.78
6. Step 6: Final answer
   x = 7,892.23