Finding the Fourth Proportional to 63,930.72, 88,224.78 and 35,638.20

Step by Step Solution

1. Step 1: Write the proportion equation
   63,930.72 : 88,224.78 = 35,638.20 : x
2. Step 2: Convert to fraction form
   63,930.72/88,224.78 = 35,638.20/x
3. Step 3: Cross multiply
   63,930.72x = 88,224.78 × 35,638.20
4. Step 4: Simplify right side
   63,930.72x = 3,144,172,354.60
5. Step 5: Solve for x
   x = 3,144,172,354.60/63,930.72
6. Step 6: Final answer
   x = 49,180.93