Finding the Fourth Proportional to 28,196.28, 42,257.52 and 11,536.82

Step by Step Solution

1. Step 1: Write the proportion equation
   28,196.28 : 42,257.52 = 11,536.82 : x
2. Step 2: Convert to fraction form
   28,196.28/42,257.52 = 11,536.82/x
3. Step 3: Cross multiply
   28,196.28x = 42,257.52 × 11,536.82
4. Step 4: Simplify right side
   28,196.28x = 487,517,190.60
5. Step 5: Solve for x
   x = 487,517,190.60/28,196.28
6. Step 6: Final answer
   x = 17,290.12