Finding the Fourth Proportional to 22,727.67, 31,364.21 and 12,658.05

Step by Step Solution

1. Step 1: Write the proportion equation
   22,727.67 : 31,364.21 = 12,658.05 : x
2. Step 2: Convert to fraction form
   22,727.67/31,364.21 = 12,658.05/x
3. Step 3: Cross multiply
   22,727.67x = 31,364.21 × 12,658.05
4. Step 4: Simplify right side
   22,727.67x = 397,009,738.39
5. Step 5: Solve for x
   x = 397,009,738.39/22,727.67
6. Step 6: Final answer
   x = 17,468.12