Finding the Fourth Proportional to 76,072.56, 104,944.78 and 49,223.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,072.56 : 104,944.78 = 49,223.72 : x
2. Step 2: Convert to fraction form
   76,072.56/104,944.78 = 49,223.72/x
3. Step 3: Cross multiply
   76,072.56x = 104,944.78 × 49,223.72
4. Step 4: Simplify right side
   76,072.56x = 5,165,772,466.18
5. Step 5: Solve for x
   x = 5,165,772,466.18/76,072.56
6. Step 6: Final answer
   x = 67,905.86