Finding the Fourth Proportional to 12,611.90, 17,386.25 and 8,823.33

Step by Step Solution

1. Step 1: Write the proportion equation
   12,611.90 : 17,386.25 = 8,823.33 : x
2. Step 2: Convert to fraction form
   12,611.90/17,386.25 = 8,823.33/x
3. Step 3: Cross multiply
   12,611.90x = 17,386.25 × 8,823.33
4. Step 4: Simplify right side
   12,611.90x = 153,404,577.10
5. Step 5: Solve for x
   x = 153,404,577.10/12,611.90
6. Step 6: Final answer
   x = 12,163.48