Finding the Fourth Proportional to 12,019.78, 16,581 and 7,535.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,019.78 : 16,581 = 7,535.08 : x
2. Step 2: Convert to fraction form
   12,019.78/16,581 = 7,535.08/x
3. Step 3: Cross multiply
   12,019.78x = 16,581 × 7,535.08
4. Step 4: Simplify right side
   12,019.78x = 124,939,161.48
5. Step 5: Solve for x
   x = 124,939,161.48/12,019.78
6. Step 6: Final answer
   x = 10,394.46