Finding the Fourth Proportional to 22,465.70, 31,002.88 and 12,394.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,465.70 : 31,002.88 = 12,394.50 : x
2. Step 2: Convert to fraction form
   22,465.70/31,002.88 = 12,394.50/x
3. Step 3: Cross multiply
   22,465.70x = 31,002.88 × 12,394.50
4. Step 4: Simplify right side
   22,465.70x = 384,265,196.16
5. Step 5: Solve for x
   x = 384,265,196.16/22,465.70
6. Step 6: Final answer
   x = 17,104.53