Finding the Fourth Proportional to 42,108.98, 58,361.50 and 41,321.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,108.98 : 58,361.50 = 41,321.78 : x
2. Step 2: Convert to fraction form
   42,108.98/58,361.50 = 41,321.78/x
3. Step 3: Cross multiply
   42,108.98x = 58,361.50 × 41,321.78
4. Step 4: Simplify right side
   42,108.98x = 2,411,600,856.86
5. Step 5: Solve for x
   x = 2,411,600,856.86/42,108.98
6. Step 6: Final answer
   x = 57,270.46