Finding the Fourth Proportional to 22,499.36, 31,048.92 and 12,808.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,499.36 : 31,048.92 = 12,808.86 : x
2. Step 2: Convert to fraction form
   22,499.36/31,048.92 = 12,808.86/x
3. Step 3: Cross multiply
   22,499.36x = 31,048.92 × 12,808.86
4. Step 4: Simplify right side
   22,499.36x = 397,701,269.43
5. Step 5: Solve for x
   x = 397,701,269.43/22,499.36
6. Step 6: Final answer
   x = 17,676.12