Finding the Fourth Proportional to 22,067.76, 30,454.18 and 12,507.40

Step by Step Solution

1. Step 1: Write the proportion equation
   22,067.76 : 30,454.18 = 12,507.40 : x
2. Step 2: Convert to fraction form
   22,067.76/30,454.18 = 12,507.40/x
3. Step 3: Cross multiply
   22,067.76x = 30,454.18 × 12,507.40
4. Step 4: Simplify right side
   22,067.76x = 380,902,610.93
5. Step 5: Solve for x
   x = 380,902,610.93/22,067.76
6. Step 6: Final answer
   x = 17,260.59