Finding the Fourth Proportional to 22,013.05, 30,378.41 and 13,061.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,013.05 : 30,378.41 = 13,061.34 : x
2. Step 2: Convert to fraction form
   22,013.05/30,378.41 = 13,061.34/x
3. Step 3: Cross multiply
   22,013.05x = 30,378.41 × 13,061.34
4. Step 4: Simplify right side
   22,013.05x = 396,782,741.67
5. Step 5: Solve for x
   x = 396,782,741.67/22,013.05
6. Step 6: Final answer
   x = 18,024.89