Finding the Fourth Proportional to 12,328.83, 17,036.33 and 8,785.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,328.83 : 17,036.33 = 8,785.89 : x
2. Step 2: Convert to fraction form
   12,328.83/17,036.33 = 8,785.89/x
3. Step 3: Cross multiply
   12,328.83x = 17,036.33 × 8,785.89
4. Step 4: Simplify right side
   12,328.83x = 149,679,277.45
5. Step 5: Solve for x
   x = 149,679,277.45/12,328.83
6. Step 6: Final answer
   x = 12,140.59