Finding the Fourth Proportional to 22,969.46, 31,698.62 and 12,899.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,969.46 : 31,698.62 = 12,899.69 : x
2. Step 2: Convert to fraction form
   22,969.46/31,698.62 = 12,899.69/x
3. Step 3: Cross multiply
   22,969.46x = 31,698.62 × 12,899.69
4. Step 4: Simplify right side
   22,969.46x = 408,902,279.40
5. Step 5: Solve for x
   x = 408,902,279.40/22,969.46
6. Step 6: Final answer
   x = 17,802.00