Finding the Fourth Proportional to 76,016.17, 104,905.27 and 50,478.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,016.17 : 104,905.27 = 50,478.50 : x
2. Step 2: Convert to fraction form
   76,016.17/104,905.27 = 50,478.50/x
3. Step 3: Cross multiply
   76,016.17x = 104,905.27 × 50,478.50
4. Step 4: Simplify right side
   76,016.17x = 5,295,460,414.37
5. Step 5: Solve for x
   x = 5,295,460,414.37/76,016.17
6. Step 6: Final answer
   x = 69,662.29