Finding the Fourth Proportional to 143,217.12, 214,702.56 and 49,710.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,217.12 : 214,702.56 = 49,710.72 : x
2. Step 2: Convert to fraction form
   143,217.12/214,702.56 = 49,710.72/x
3. Step 3: Cross multiply
   143,217.12x = 214,702.56 × 49,710.72
4. Step 4: Simplify right side
   143,217.12x = 10,673,018,843.44
5. Step 5: Solve for x
   x = 10,673,018,843.44/143,217.12
6. Step 6: Final answer
   x = 74,523.34