Finding the Fourth Proportional to 10,434.80, 14,400.71 and 5,719.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.80 : 14,400.71 = 5,719.08 : x
2. Step 2: Convert to fraction form
   10,434.80/14,400.71 = 5,719.08/x
3. Step 3: Cross multiply
   10,434.80x = 14,400.71 × 5,719.08
4. Step 4: Simplify right side
   10,434.80x = 82,358,783.95
5. Step 5: Solve for x
   x = 82,358,783.95/10,434.80
6. Step 6: Final answer
   x = 7,892.70