Finding the Fourth Proportional to 28,627.08, 42,919.86 and 19,243.82

Step by Step Solution

1. Step 1: Write the proportion equation
   28,627.08 : 42,919.86 = 19,243.82 : x
2. Step 2: Convert to fraction form
   28,627.08/42,919.86 = 19,243.82/x
3. Step 3: Cross multiply
   28,627.08x = 42,919.86 × 19,243.82
4. Step 4: Simplify right side
   28,627.08x = 825,942,167.56
5. Step 5: Solve for x
   x = 825,942,167.56/28,627.08
6. Step 6: Final answer
   x = 28,851.78