Finding the Fourth Proportional to 10,434.66, 14,399.89 and 5,719.11

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.66 : 14,399.89 = 5,719.11 : x
2. Step 2: Convert to fraction form
   10,434.66/14,399.89 = 5,719.11/x
3. Step 3: Cross multiply
   10,434.66x = 14,399.89 × 5,719.11
4. Step 4: Simplify right side
   10,434.66x = 82,354,526.30
5. Step 5: Solve for x
   x = 82,354,526.30/10,434.66
6. Step 6: Final answer
   x = 7,892.40