Finding the Fourth Proportional to 50,736.78, 76,117.86 and 19,146.78

Step by Step Solution

1. Step 1: Write the proportion equation
   50,736.78 : 76,117.86 = 19,146.78 : x
2. Step 2: Convert to fraction form
   50,736.78/76,117.86 = 19,146.78/x
3. Step 3: Cross multiply
   50,736.78x = 76,117.86 × 19,146.78
4. Step 4: Simplify right side
   50,736.78x = 1,457,411,919.49
5. Step 5: Solve for x
   x = 1,457,411,919.49/50,736.78
6. Step 6: Final answer
   x = 28,724.96