Finding the Fourth Proportional to 42,778.78, 59,025.24 and 26,857.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,778.78 : 59,025.24 = 26,857.42 : x
2. Step 2: Convert to fraction form
   42,778.78/59,025.24 = 26,857.42/x
3. Step 3: Cross multiply
   42,778.78x = 59,025.24 × 26,857.42
4. Step 4: Simplify right side
   42,778.78x = 1,585,265,661.28
5. Step 5: Solve for x
   x = 1,585,265,661.28/42,778.78
6. Step 6: Final answer
   x = 37,057.29