Finding the Fourth Proportional to 143,866.10, 215,648.64 and 49,063.10

Step by Step Solution

1. Step 1: Write the proportion equation
   143,866.10 : 215,648.64 = 49,063.10 : x
2. Step 2: Convert to fraction form
   143,866.10/215,648.64 = 49,063.10/x
3. Step 3: Cross multiply
   143,866.10x = 215,648.64 × 49,063.10
4. Step 4: Simplify right side
   143,866.10x = 10,580,389,710.94
5. Step 5: Solve for x
   x = 10,580,389,710.94/143,866.10
6. Step 6: Final answer
   x = 73,543.32