Finding the Fourth Proportional to 12,016.60, 16,578.48 and 7,540.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,016.60 : 16,578.48 = 7,540.52 : x
2. Step 2: Convert to fraction form
   12,016.60/16,578.48 = 7,540.52/x
3. Step 3: Cross multiply
   12,016.60x = 16,578.48 × 7,540.52
4. Step 4: Simplify right side
   12,016.60x = 125,010,360.01
5. Step 5: Solve for x
   x = 125,010,360.01/12,016.60
6. Step 6: Final answer
   x = 10,403.14