Finding the Fourth Proportional to 68,680.91, 102,887.71 and 50,636.27

Step by Step Solution

1. Step 1: Write the proportion equation
   68,680.91 : 102,887.71 = 50,636.27 : x
2. Step 2: Convert to fraction form
   68,680.91/102,887.71 = 50,636.27/x
3. Step 3: Cross multiply
   68,680.91x = 102,887.71 × 50,636.27
4. Step 4: Simplify right side
   68,680.91x = 5,209,849,095.62
5. Step 5: Solve for x
   x = 5,209,849,095.62/68,680.91
6. Step 6: Final answer
   x = 75,855.86