Finding the Fourth Proportional to 109,813, 164,781.78 and 50,648.71

Step by Step Solution

1. Step 1: Write the proportion equation
   109,813 : 164,781.78 = 50,648.71 : x
2. Step 2: Convert to fraction form
   109,813/164,781.78 = 50,648.71/x
3. Step 3: Cross multiply
   109,813x = 164,781.78 × 50,648.71
4. Step 4: Simplify right side
   109,813x = 8,345,984,588.50
5. Step 5: Solve for x
   x = 8,345,984,588.50/109,813
6. Step 6: Final answer
   x = 76,001.79