Finding the Fourth Proportional to 42,745.52, 58,672.82 and 40,918.70

Step by Step Solution

1. Step 1: Write the proportion equation
   42,745.52 : 58,672.82 = 40,918.70 : x
2. Step 2: Convert to fraction form
   42,745.52/58,672.82 = 40,918.70/x
3. Step 3: Cross multiply
   42,745.52x = 58,672.82 × 40,918.70
4. Step 4: Simplify right side
   42,745.52x = 2,400,815,768.71
5. Step 5: Solve for x
   x = 2,400,815,768.71/42,745.52
6. Step 6: Final answer
   x = 56,165.32