Finding the Fourth Proportional to 22,830.24, 31,506.42 and 12,758.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,830.24 : 31,506.42 = 12,758.34 : x
2. Step 2: Convert to fraction form
   22,830.24/31,506.42 = 12,758.34/x
3. Step 3: Cross multiply
   22,830.24x = 31,506.42 × 12,758.34
4. Step 4: Simplify right side
   22,830.24x = 401,969,618.54
5. Step 5: Solve for x
   x = 401,969,618.54/22,830.24
6. Step 6: Final answer
   x = 17,606.89