Finding the Fourth Proportional to 22,681.69, 31,300.73 and 12,745.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,681.69 : 31,300.73 = 12,745.69 : x
2. Step 2: Convert to fraction form
   22,681.69/31,300.73 = 12,745.69/x
3. Step 3: Cross multiply
   22,681.69x = 31,300.73 × 12,745.69
4. Step 4: Simplify right side
   22,681.69x = 398,949,307.17
5. Step 5: Solve for x
   x = 398,949,307.17/22,681.69
6. Step 6: Final answer
   x = 17,589.05