Finding the Fourth Proportional to 22,705.99, 31,334.42 and 12,634.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,705.99 : 31,334.42 = 12,634.86 : x
2. Step 2: Convert to fraction form
   22,705.99/31,334.42 = 12,634.86/x
3. Step 3: Cross multiply
   22,705.99x = 31,334.42 × 12,634.86
4. Step 4: Simplify right side
   22,705.99x = 395,906,009.88
5. Step 5: Solve for x
   x = 395,906,009.88/22,705.99
6. Step 6: Final answer
   x = 17,436.19