Finding the Fourth Proportional to 23,231.79, 34,854.36 and 8,436.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,231.79 : 34,854.36 = 8,436.72 : x
2. Step 2: Convert to fraction form
   23,231.79/34,854.36 = 8,436.72/x
3. Step 3: Cross multiply
   23,231.79x = 34,854.36 × 8,436.72
4. Step 4: Simplify right side
   23,231.79x = 294,056,476.10
5. Step 5: Solve for x
   x = 294,056,476.10/23,231.79
6. Step 6: Final answer
   x = 12,657.50