Finding the Fourth Proportional to 22,458.15, 30,992.49 and 12,386.61

Step by Step Solution

1. Step 1: Write the proportion equation
   22,458.15 : 30,992.49 = 12,386.61 : x
2. Step 2: Convert to fraction form
   22,458.15/30,992.49 = 12,386.61/x
3. Step 3: Cross multiply
   22,458.15x = 30,992.49 × 12,386.61
4. Step 4: Simplify right side
   22,458.15x = 383,891,886.56
5. Step 5: Solve for x
   x = 383,891,886.56/22,458.15
6. Step 6: Final answer
   x = 17,093.66