Finding the Fourth Proportional to 143,648.78, 215,373.24 and 63,643.34

Step by Step Solution

1. Step 1: Write the proportion equation
   143,648.78 : 215,373.24 = 63,643.34 : x
2. Step 2: Convert to fraction form
   143,648.78/215,373.24 = 63,643.34/x
3. Step 3: Cross multiply
   143,648.78x = 215,373.24 × 63,643.34
4. Step 4: Simplify right side
   143,648.78x = 13,707,072,340.22
5. Step 5: Solve for x
   x = 13,707,072,340.22/143,648.78
6. Step 6: Final answer
   x = 95,420.74