Finding the Fourth Proportional to 11,040.39, 16,560.50 and 5,193.81

Step by Step Solution

1. Step 1: Write the proportion equation
   11,040.39 : 16,560.50 = 5,193.81 : x
2. Step 2: Convert to fraction form
   11,040.39/16,560.50 = 5,193.81/x
3. Step 3: Cross multiply
   11,040.39x = 16,560.50 × 5,193.81
4. Step 4: Simplify right side
   11,040.39x = 86,012,064.54
5. Step 5: Solve for x
   x = 86,012,064.54/11,040.39
6. Step 6: Final answer
   x = 7,790.67