Finding the Fourth Proportional to 22,661.94, 31,271.22 and 13,236

Step by Step Solution

1. Step 1: Write the proportion equation
   22,661.94 : 31,271.22 = 13,236 : x
2. Step 2: Convert to fraction form
   22,661.94/31,271.22 = 13,236/x
3. Step 3: Cross multiply
   22,661.94x = 31,271.22 × 13,236
4. Step 4: Simplify right side
   22,661.94x = 413,905,867.92
5. Step 5: Solve for x
   x = 413,905,867.92/22,661.94
6. Step 6: Final answer
   x = 18,264.36