Finding the Fourth Proportional to 63,520.72, 95,285.72 and 21,400.88

Step by Step Solution

1. Step 1: Write the proportion equation
   63,520.72 : 95,285.72 = 21,400.88 : x
2. Step 2: Convert to fraction form
   63,520.72/95,285.72 = 21,400.88/x
3. Step 3: Cross multiply
   63,520.72x = 95,285.72 × 21,400.88
4. Step 4: Simplify right side
   63,520.72x = 2,039,198,259.43
5. Step 5: Solve for x
   x = 2,039,198,259.43/63,520.72
6. Step 6: Final answer
   x = 32,102.88