Finding the Fourth Proportional to 63,645.98, 87,821.69 and 36,783.30

Step by Step Solution

1. Step 1: Write the proportion equation
   63,645.98 : 87,821.69 = 36,783.30 : x
2. Step 2: Convert to fraction form
   63,645.98/87,821.69 = 36,783.30/x
3. Step 3: Cross multiply
   63,645.98x = 87,821.69 × 36,783.30
4. Step 4: Simplify right side
   63,645.98x = 3,230,371,385.86
5. Step 5: Solve for x
   x = 3,230,371,385.86/63,645.98
6. Step 6: Final answer
   x = 50,755.31