Finding the Fourth Proportional to 22,504.79, 31,056.38 and 12,432.58

Step by Step Solution

1. Step 1: Write the proportion equation
   22,504.79 : 31,056.38 = 12,432.58 : x
2. Step 2: Convert to fraction form
   22,504.79/31,056.38 = 12,432.58/x
3. Step 3: Cross multiply
   22,504.79x = 31,056.38 × 12,432.58
4. Step 4: Simplify right side
   22,504.79x = 386,110,928.86
5. Step 5: Solve for x
   x = 386,110,928.86/22,504.79
6. Step 6: Final answer
   x = 17,156.83