Finding the Fourth Proportional to 22,830.61, 31,506.15 and 12,759.05

Step by Step Solution

1. Step 1: Write the proportion equation
   22,830.61 : 31,506.15 = 12,759.05 : x
2. Step 2: Convert to fraction form
   22,830.61/31,506.15 = 12,759.05/x
3. Step 3: Cross multiply
   22,830.61x = 31,506.15 × 12,759.05
4. Step 4: Simplify right side
   22,830.61x = 401,988,543.16
5. Step 5: Solve for x
   x = 401,988,543.16/22,830.61
6. Step 6: Final answer
   x = 17,607.44