Finding the Fourth Proportional to 22,500.69, 31,052.88 and 12,430.23

Step by Step Solution

1. Step 1: Write the proportion equation
   22,500.69 : 31,052.88 = 12,430.23 : x
2. Step 2: Convert to fraction form
   22,500.69/31,052.88 = 12,430.23/x
3. Step 3: Cross multiply
   22,500.69x = 31,052.88 × 12,430.23
4. Step 4: Simplify right side
   22,500.69x = 385,994,440.56
5. Step 5: Solve for x
   x = 385,994,440.56/22,500.69
6. Step 6: Final answer
   x = 17,154.78