Finding the Fourth Proportional to 42,010.72, 57,974.64 and 22,891.54

Step by Step Solution

1. Step 1: Write the proportion equation
   42,010.72 : 57,974.64 = 22,891.54 : x
2. Step 2: Convert to fraction form
   42,010.72/57,974.64 = 22,891.54/x
3. Step 3: Cross multiply
   42,010.72x = 57,974.64 × 22,891.54
4. Step 4: Simplify right side
   42,010.72x = 1,327,128,790.55
5. Step 5: Solve for x
   x = 1,327,128,790.55/42,010.72
6. Step 6: Final answer
   x = 31,590.24