Finding the Fourth Proportional to 22,925.82, 31,630.42 and 12,852.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,925.82 : 31,630.42 = 12,852.78 : x
2. Step 2: Convert to fraction form
   22,925.82/31,630.42 = 12,852.78/x
3. Step 3: Cross multiply
   22,925.82x = 31,630.42 × 12,852.78
4. Step 4: Simplify right side
   22,925.82x = 406,538,829.57
5. Step 5: Solve for x
   x = 406,538,829.57/22,925.82
6. Step 6: Final answer
   x = 17,732.79