Finding the Fourth Proportional to 22,062.55, 30,447.06 and 12,986.27

Step by Step Solution

1. Step 1: Write the proportion equation
   22,062.55 : 30,447.06 = 12,986.27 : x
2. Step 2: Convert to fraction form
   22,062.55/30,447.06 = 12,986.27/x
3. Step 3: Cross multiply
   22,062.55x = 30,447.06 × 12,986.27
4. Step 4: Simplify right side
   22,062.55x = 395,393,741.87
5. Step 5: Solve for x
   x = 395,393,741.87/22,062.55
6. Step 6: Final answer
   x = 17,921.49