Finding the Fourth Proportional to 22,969.40, 31,695.30 and 12,898.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,969.40 : 31,695.30 = 12,898.94 : x
2. Step 2: Convert to fraction form
   22,969.40/31,695.30 = 12,898.94/x
3. Step 3: Cross multiply
   22,969.40x = 31,695.30 × 12,898.94
4. Step 4: Simplify right side
   22,969.40x = 408,835,614.51
5. Step 5: Solve for x
   x = 408,835,614.51/22,969.40
6. Step 6: Final answer
   x = 17,799.15