Finding the Fourth Proportional to 22,458.32, 30,992.72 and 12,387.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,458.32 : 30,992.72 = 12,387.16 : x
2. Step 2: Convert to fraction form
   22,458.32/30,992.72 = 12,387.16/x
3. Step 3: Cross multiply
   22,458.32x = 30,992.72 × 12,387.16
4. Step 4: Simplify right side
   22,458.32x = 383,911,781.48
5. Step 5: Solve for x
   x = 383,911,781.48/22,458.32
6. Step 6: Final answer
   x = 17,094.41