Finding the Fourth Proportional to 22,078.46, 30,454.70 and 13,119.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,078.46 : 30,454.70 = 13,119.86 : x
2. Step 2: Convert to fraction form
   22,078.46/30,454.70 = 13,119.86/x
3. Step 3: Cross multiply
   22,078.46x = 30,454.70 × 13,119.86
4. Step 4: Simplify right side
   22,078.46x = 399,561,400.34
5. Step 5: Solve for x
   x = 399,561,400.34/22,078.46
6. Step 6: Final answer
   x = 18,097.34