Finding the Fourth Proportional to 381,333.24, 572,150.52 and 144,738.72

Step by Step Solution

1. Step 1: Write the proportion equation
   381,333.24 : 572,150.52 = 144,738.72 : x
2. Step 2: Convert to fraction form
   381,333.24/572,150.52 = 144,738.72/x
3. Step 3: Cross multiply
   381,333.24x = 572,150.52 × 144,738.72
4. Step 4: Simplify right side
   381,333.24x = 82,812,333,912.13
5. Step 5: Solve for x
   x = 82,812,333,912.13/381,333.24
6. Step 6: Final answer
   x = 217,165.26