Finding the Fourth Proportional to 10,488.96, 14,479.30 and 7,499.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,488.96 : 14,479.30 = 7,499.60 : x
2. Step 2: Convert to fraction form
   10,488.96/14,479.30 = 7,499.60/x
3. Step 3: Cross multiply
   10,488.96x = 14,479.30 × 7,499.60
4. Step 4: Simplify right side
   10,488.96x = 108,588,958.28
5. Step 5: Solve for x
   x = 108,588,958.28/10,488.96
6. Step 6: Final answer
   x = 10,352.69