Finding the Fourth Proportional to 22,473.62, 31,013.38 and 12,402.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,473.62 : 31,013.38 = 12,402.15 : x
2. Step 2: Convert to fraction form
   22,473.62/31,013.38 = 12,402.15/x
3. Step 3: Cross multiply
   22,473.62x = 31,013.38 × 12,402.15
4. Step 4: Simplify right side
   22,473.62x = 384,632,590.77
5. Step 5: Solve for x
   x = 384,632,590.77/22,473.62
6. Step 6: Final answer
   x = 17,114.85