Finding the Fourth Proportional to 144,140.96, 216,309.86 and 50,646.72

Step by Step Solution

1. Step 1: Write the proportion equation
   144,140.96 : 216,309.86 = 50,646.72 : x
2. Step 2: Convert to fraction form
   144,140.96/216,309.86 = 50,646.72/x
3. Step 3: Cross multiply
   144,140.96x = 216,309.86 × 50,646.72
4. Step 4: Simplify right side
   144,140.96x = 10,955,384,912.66
5. Step 5: Solve for x
   x = 10,955,384,912.66/144,140.96
6. Step 6: Final answer
   x = 76,004.66