Finding the Fourth Proportional to 42,012.72, 57,977.06 and 22,893.35

Step by Step Solution

1. Step 1: Write the proportion equation
   42,012.72 : 57,977.06 = 22,893.35 : x
2. Step 2: Convert to fraction form
   42,012.72/57,977.06 = 22,893.35/x
3. Step 3: Cross multiply
   42,012.72x = 57,977.06 × 22,893.35
4. Step 4: Simplify right side
   42,012.72x = 1,327,288,722.20
5. Step 5: Solve for x
   x = 1,327,288,722.20/42,012.72
6. Step 6: Final answer
   x = 31,592.54