Finding the Fourth Proportional to 22,270.76, 30,737.61 and 13,319.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,270.76 : 30,737.61 = 13,319.25 : x
2. Step 2: Convert to fraction form
   22,270.76/30,737.61 = 13,319.25/x
3. Step 3: Cross multiply
   22,270.76x = 30,737.61 × 13,319.25
4. Step 4: Simplify right side
   22,270.76x = 409,401,691.71
5. Step 5: Solve for x
   x = 409,401,691.71/22,270.76
6. Step 6: Final answer
   x = 18,382.92