Finding the Fourth Proportional to 32,966.72, 49,450.72 and 10,780

Step by Step Solution

1. Step 1: Write the proportion equation
   32,966.72 : 49,450.72 = 10,780 : x
2. Step 2: Convert to fraction form
   32,966.72/49,450.72 = 10,780/x
3. Step 3: Cross multiply
   32,966.72x = 49,450.72 × 10,780
4. Step 4: Simplify right side
   32,966.72x = 533,078,761.60
5. Step 5: Solve for x
   x = 533,078,761.60/32,966.72
6. Step 6: Final answer
   x = 16,170.21