Finding the Fourth Proportional to 22,253.12, 30,708.31 and 12,181.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,253.12 : 30,708.31 = 12,181.98 : x
2. Step 2: Convert to fraction form
   22,253.12/30,708.31 = 12,181.98/x
3. Step 3: Cross multiply
   22,253.12x = 30,708.31 × 12,181.98
4. Step 4: Simplify right side
   22,253.12x = 374,087,987.80
5. Step 5: Solve for x
   x = 374,087,987.80/22,253.12
6. Step 6: Final answer
   x = 16,810.59