Finding the Fourth Proportional to 22,830.72, 31,506.30 and 12,759.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,830.72 : 31,506.30 = 12,759.16 : x
2. Step 2: Convert to fraction form
   22,830.72/31,506.30 = 12,759.16/x
3. Step 3: Cross multiply
   22,830.72x = 31,506.30 × 12,759.16
4. Step 4: Simplify right side
   22,830.72x = 401,993,843.94
5. Step 5: Solve for x
   x = 401,993,843.94/22,830.72
6. Step 6: Final answer
   x = 17,607.59