Finding the Fourth Proportional to 22,280.89, 30,744.71 and 13,325.13

Step by Step Solution

1. Step 1: Write the proportion equation
   22,280.89 : 30,744.71 = 13,325.13 : x
2. Step 2: Convert to fraction form
   22,280.89/30,744.71 = 13,325.13/x
3. Step 3: Cross multiply
   22,280.89x = 30,744.71 × 13,325.13
4. Step 4: Simplify right side
   22,280.89x = 409,677,037.21
5. Step 5: Solve for x
   x = 409,677,037.21/22,280.89
6. Step 6: Final answer
   x = 18,386.92