Finding the Fourth Proportional to 78,732.17, 108,616.10 and 50,036.45

Step by Step Solution

1. Step 1: Write the proportion equation
   78,732.17 : 108,616.10 = 50,036.45 : x
2. Step 2: Convert to fraction form
   78,732.17/108,616.10 = 50,036.45/x
3. Step 3: Cross multiply
   78,732.17x = 108,616.10 × 50,036.45
4. Step 4: Simplify right side
   78,732.17x = 5,434,764,455.48
5. Step 5: Solve for x
   x = 5,434,764,455.48/78,732.17
6. Step 6: Final answer
   x = 69,028.51