Finding the Fourth Proportional to 11,785.65, 16,258.55 and 8,592.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,785.65 : 16,258.55 = 8,592.09 : x
2. Step 2: Convert to fraction form
   11,785.65/16,258.55 = 8,592.09/x
3. Step 3: Cross multiply
   11,785.65x = 16,258.55 × 8,592.09
4. Step 4: Simplify right side
   11,785.65x = 139,694,881.91
5. Step 5: Solve for x
   x = 139,694,881.91/11,785.65
6. Step 6: Final answer
   x = 11,852.96