Finding the Fourth Proportional to 11,993.88, 16,540.83 and 7,518.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,993.88 : 16,540.83 = 7,518.12 : x
2. Step 2: Convert to fraction form
   11,993.88/16,540.83 = 7,518.12/x
3. Step 3: Cross multiply
   11,993.88x = 16,540.83 × 7,518.12
4. Step 4: Simplify right side
   11,993.88x = 124,355,944.84
5. Step 5: Solve for x
   x = 124,355,944.84/11,993.88
6. Step 6: Final answer
   x = 10,368.28