Finding the Fourth Proportional to 22,904.55, 31,604.04 and 12,833.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,904.55 : 31,604.04 = 12,833.10 : x
2. Step 2: Convert to fraction form
   22,904.55/31,604.04 = 12,833.10/x
3. Step 3: Cross multiply
   22,904.55x = 31,604.04 × 12,833.10
4. Step 4: Simplify right side
   22,904.55x = 405,577,805.72
5. Step 5: Solve for x
   x = 405,577,805.72/22,904.55
6. Step 6: Final answer
   x = 17,707.30