Finding the Fourth Proportional to 22,920.50, 31,629.98 and 12,848.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,920.50 : 31,629.98 = 12,848.92 : x
2. Step 2: Convert to fraction form
   22,920.50/31,629.98 = 12,848.92/x
3. Step 3: Cross multiply
   22,920.50x = 31,629.98 × 12,848.92
4. Step 4: Simplify right side
   22,920.50x = 406,411,035.67
5. Step 5: Solve for x
   x = 406,411,035.67/22,920.50
6. Step 6: Final answer
   x = 17,731.33