Finding the Fourth Proportional to 10,505.79, 14,493.40 and 7,520.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,505.79 : 14,493.40 = 7,520.54 : x
2. Step 2: Convert to fraction form
   10,505.79/14,493.40 = 7,520.54/x
3. Step 3: Cross multiply
   10,505.79x = 14,493.40 × 7,520.54
4. Step 4: Simplify right side
   10,505.79x = 108,998,103.17
5. Step 5: Solve for x
   x = 108,998,103.17/10,505.79
6. Step 6: Final answer
   x = 10,375.05