Finding the Fourth Proportional to 10,435.12, 14,400.48 and 5,719.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,435.12 : 14,400.48 = 5,719.50 : x
2. Step 2: Convert to fraction form
   10,435.12/14,400.48 = 5,719.50/x
3. Step 3: Cross multiply
   10,435.12x = 14,400.48 × 5,719.50
4. Step 4: Simplify right side
   10,435.12x = 82,363,545.36
5. Step 5: Solve for x
   x = 82,363,545.36/10,435.12
6. Step 6: Final answer
   x = 7,892.92