Finding the Fourth Proportional to 22,473.21, 31,013 and 12,401.65

Step by Step Solution

1. Step 1: Write the proportion equation
   22,473.21 : 31,013 = 12,401.65 : x
2. Step 2: Convert to fraction form
   22,473.21/31,013 = 12,401.65/x
3. Step 3: Cross multiply
   22,473.21x = 31,013 × 12,401.65
4. Step 4: Simplify right side
   22,473.21x = 384,612,216.39
5. Step 5: Solve for x
   x = 384,612,216.39/22,473.21
6. Step 6: Final answer
   x = 17,114.25