Finding the Fourth Proportional to 10,434.72, 14,400.16 and 5,719.26

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.72 : 14,400.16 = 5,719.26 : x
2. Step 2: Convert to fraction form
   10,434.72/14,400.16 = 5,719.26/x
3. Step 3: Cross multiply
   10,434.72x = 14,400.16 × 5,719.26
4. Step 4: Simplify right side
   10,434.72x = 82,358,259.08
5. Step 5: Solve for x
   x = 82,358,259.08/10,434.72
6. Step 6: Final answer
   x = 7,892.71