Finding the Fourth Proportional to 22,300.56, 30,774.96 and 12,867.24

Step by Step Solution

1. Step 1: Write the proportion equation
   22,300.56 : 30,774.96 = 12,867.24 : x
2. Step 2: Convert to fraction form
   22,300.56/30,774.96 = 12,867.24/x
3. Step 3: Cross multiply
   22,300.56x = 30,774.96 × 12,867.24
4. Step 4: Simplify right side
   22,300.56x = 395,988,796.31
5. Step 5: Solve for x
   x = 395,988,796.31/22,300.56
6. Step 6: Final answer
   x = 17,756.90