Finding the Fourth Proportional to 16,860.83, 23,275.82 and 9,785.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,860.83 : 23,275.82 = 9,785.89 : x
2. Step 2: Convert to fraction form
   16,860.83/23,275.82 = 9,785.89/x
3. Step 3: Cross multiply
   16,860.83x = 23,275.82 × 9,785.89
4. Step 4: Simplify right side
   16,860.83x = 227,774,580.45
5. Step 5: Solve for x
   x = 227,774,580.45/16,860.83
6. Step 6: Final answer
   x = 13,509.09