Finding the Fourth Proportional to 10,434.79, 14,400.20 and 5,719.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.79 : 14,400.20 = 5,719.04 : x
2. Step 2: Convert to fraction form
   10,434.79/14,400.20 = 5,719.04/x
3. Step 3: Cross multiply
   10,434.79x = 14,400.20 × 5,719.04
4. Step 4: Simplify right side
   10,434.79x = 82,355,319.81
5. Step 5: Solve for x
   x = 82,355,319.81/10,434.79
6. Step 6: Final answer
   x = 7,892.38