Finding the Fourth Proportional to 144,148, 216,320.42 and 50,653.72

Step by Step Solution

1. Step 1: Write the proportion equation
   144,148 : 216,320.42 = 50,653.72 : x
2. Step 2: Convert to fraction form
   144,148/216,320.42 = 50,653.72/x
3. Step 3: Cross multiply
   144,148x = 216,320.42 × 50,653.72
4. Step 4: Simplify right side
   144,148x = 10,957,433,984.96
5. Step 5: Solve for x
   x = 10,957,433,984.96/144,148
6. Step 6: Final answer
   x = 76,015.16