Finding the Fourth Proportional to 22,063.15, 30,445.53 and 12,503.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,063.15 : 30,445.53 = 12,503.20 : x
2. Step 2: Convert to fraction form
   22,063.15/30,445.53 = 12,503.20/x
3. Step 3: Cross multiply
   22,063.15x = 30,445.53 × 12,503.20
4. Step 4: Simplify right side
   22,063.15x = 380,666,550.70
5. Step 5: Solve for x
   x = 380,666,550.70/22,063.15
6. Step 6: Final answer
   x = 17,253.50