Finding the Fourth Proportional to 22,475.14, 31,019.34 and 13,401.66

Step by Step Solution

1. Step 1: Write the proportion equation
   22,475.14 : 31,019.34 = 13,401.66 : x
2. Step 2: Convert to fraction form
   22,475.14/31,019.34 = 13,401.66/x
3. Step 3: Cross multiply
   22,475.14x = 31,019.34 × 13,401.66
4. Step 4: Simplify right side
   22,475.14x = 415,710,648.10
5. Step 5: Solve for x
   x = 415,710,648.10/22,475.14
6. Step 6: Final answer
   x = 18,496.47