Finding the Fourth Proportional to 42,776.78, 59,022.47 and 26,855.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,776.78 : 59,022.47 = 26,855.42 : x
2. Step 2: Convert to fraction form
   42,776.78/59,022.47 = 26,855.42/x
3. Step 3: Cross multiply
   42,776.78x = 59,022.47 × 26,855.42
4. Step 4: Simplify right side
   42,776.78x = 1,585,072,993.31
5. Step 5: Solve for x
   x = 1,585,072,993.31/42,776.78
6. Step 6: Final answer
   x = 37,054.52