Finding the Fourth Proportional to 63,081.72, 87,042.72 and 36,220.44

Step by Step Solution

1. Step 1: Write the proportion equation
   63,081.72 : 87,042.72 = 36,220.44 : x
2. Step 2: Convert to fraction form
   63,081.72/87,042.72 = 36,220.44/x
3. Step 3: Cross multiply
   63,081.72x = 87,042.72 × 36,220.44
4. Step 4: Simplify right side
   63,081.72x = 3,152,725,617.20
5. Step 5: Solve for x
   x = 3,152,725,617.20/63,081.72
6. Step 6: Final answer
   x = 49,978.43