Finding the Fourth Proportional to 22,885.88, 31,583.10 and 12,816.45

Step by Step Solution

1. Step 1: Write the proportion equation
   22,885.88 : 31,583.10 = 12,816.45 : x
2. Step 2: Convert to fraction form
   22,885.88/31,583.10 = 12,816.45/x
3. Step 3: Cross multiply
   22,885.88x = 31,583.10 × 12,816.45
4. Step 4: Simplify right side
   22,885.88x = 404,783,222.00
5. Step 5: Solve for x
   x = 404,783,222.00/22,885.88
6. Step 6: Final answer
   x = 17,687.03