Finding the Fourth Proportional to 22,150.84, 30,566.88 and 12,718.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,150.84 : 30,566.88 = 12,718.78 : x
2. Step 2: Convert to fraction form
   22,150.84/30,566.88 = 12,718.78/x
3. Step 3: Cross multiply
   22,150.84x = 30,566.88 × 12,718.78
4. Step 4: Simplify right side
   22,150.84x = 388,773,422.01
5. Step 5: Solve for x
   x = 388,773,422.01/22,150.84
6. Step 6: Final answer
   x = 17,551.18