Finding the Fourth Proportional to 11,679.75, 16,118.06 and 7,488

Step by Step Solution

1. Step 1: Write the proportion equation
   11,679.75 : 16,118.06 = 7,488 : x
2. Step 2: Convert to fraction form
   11,679.75/16,118.06 = 7,488/x
3. Step 3: Cross multiply
   11,679.75x = 16,118.06 × 7,488
4. Step 4: Simplify right side
   11,679.75x = 120,692,033.28
5. Step 5: Solve for x
   x = 120,692,033.28/11,679.75
6. Step 6: Final answer
   x = 10,333.44