Finding the Fourth Proportional to 9,167.50, 12,619.02 and 7,986.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,167.50 : 12,619.02 = 7,986.52 : x
2. Step 2: Convert to fraction form
   9,167.50/12,619.02 = 7,986.52/x
3. Step 3: Cross multiply
   9,167.50x = 12,619.02 × 7,986.52
4. Step 4: Simplify right side
   9,167.50x = 100,782,055.61
5. Step 5: Solve for x
   x = 100,782,055.61/9,167.50
6. Step 6: Final answer
   x = 10,993.41