Finding the Fourth Proportional to 22,468.77, 30,782.16 and 21,627.57

Step by Step Solution

1. Step 1: Write the proportion equation
   22,468.77 : 30,782.16 = 21,627.57 : x
2. Step 2: Convert to fraction form
   22,468.77/30,782.16 = 21,627.57/x
3. Step 3: Cross multiply
   22,468.77x = 30,782.16 × 21,627.57
4. Step 4: Simplify right side
   22,468.77x = 665,743,320.15
5. Step 5: Solve for x
   x = 665,743,320.15/22,468.77
6. Step 6: Final answer
   x = 29,629.72