Finding the Fourth Proportional to 10,520.75, 14,518.32 and 5,740.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,520.75 : 14,518.32 = 5,740.79 : x
2. Step 2: Convert to fraction form
   10,520.75/14,518.32 = 5,740.79/x
3. Step 3: Cross multiply
   10,520.75x = 14,518.32 × 5,740.79
4. Step 4: Simplify right side
   10,520.75x = 83,346,626.27
5. Step 5: Solve for x
   x = 83,346,626.27/10,520.75
6. Step 6: Final answer
   x = 7,922.12