Finding the Fourth Proportional to 22,307.56, 30,785.31 and 12,236.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,307.56 : 30,785.31 = 12,236.37 : x
2. Step 2: Convert to fraction form
   22,307.56/30,785.31 = 12,236.37/x
3. Step 3: Cross multiply
   22,307.56x = 30,785.31 × 12,236.37
4. Step 4: Simplify right side
   22,307.56x = 376,700,443.72
5. Step 5: Solve for x
   x = 376,700,443.72/22,307.56
6. Step 6: Final answer
   x = 16,886.67