Finding the Fourth Proportional to 22,830.68, 31,506.38 and 12,759.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,830.68 : 31,506.38 = 12,759.12 : x
2. Step 2: Convert to fraction form
   22,830.68/31,506.38 = 12,759.12/x
3. Step 3: Cross multiply
   22,830.68x = 31,506.38 × 12,759.12
4. Step 4: Simplify right side
   22,830.68x = 401,993,619.39
5. Step 5: Solve for x
   x = 401,993,619.39/22,830.68
6. Step 6: Final answer
   x = 17,607.61