Finding the Fourth Proportional to 49,408.20, 68,137.25 and 45,738.59

Step by Step Solution

1. Step 1: Write the proportion equation
   49,408.20 : 68,137.25 = 45,738.59 : x
2. Step 2: Convert to fraction form
   49,408.20/68,137.25 = 45,738.59/x
3. Step 3: Cross multiply
   49,408.20x = 68,137.25 × 45,738.59
4. Step 4: Simplify right side
   49,408.20x = 3,116,501,741.48
5. Step 5: Solve for x
   x = 3,116,501,741.48/49,408.20
6. Step 6: Final answer
   x = 63,076.61