Finding the Fourth Proportional to 144,142.96, 216,312.88 and 50,648.72

Step by Step Solution

1. Step 1: Write the proportion equation
   144,142.96 : 216,312.88 = 50,648.72 : x
2. Step 2: Convert to fraction form
   144,142.96/216,312.88 = 50,648.72/x
3. Step 3: Cross multiply
   144,142.96x = 216,312.88 × 50,648.72
4. Step 4: Simplify right side
   144,142.96x = 10,955,970,491.51
5. Step 5: Solve for x
   x = 10,955,970,491.51/144,142.96
6. Step 6: Final answer
   x = 76,007.67