Finding the Fourth Proportional to 10,435.31, 14,400.73 and 5,719.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,435.31 : 14,400.73 = 5,719.49 : x
2. Step 2: Convert to fraction form
   10,435.31/14,400.73 = 5,719.49/x
3. Step 3: Cross multiply
   10,435.31x = 14,400.73 × 5,719.49
4. Step 4: Simplify right side
   10,435.31x = 82,364,874.38
5. Step 5: Solve for x
   x = 82,364,874.38/10,435.31
6. Step 6: Final answer
   x = 7,892.90