Finding the Fourth Proportional to 22,256.42, 30,713.87 and 12,185.51

Step by Step Solution

1. Step 1: Write the proportion equation
   22,256.42 : 30,713.87 = 12,185.51 : x
2. Step 2: Convert to fraction form
   22,256.42/30,713.87 = 12,185.51/x
3. Step 3: Cross multiply
   22,256.42x = 30,713.87 × 12,185.51
4. Step 4: Simplify right side
   22,256.42x = 374,264,151.14
5. Step 5: Solve for x
   x = 374,264,151.14/22,256.42
6. Step 6: Final answer
   x = 16,816.01