Finding the Fourth Proportional to 10,780.62, 16,172.58 and 3,853.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,780.62 : 16,172.58 = 3,853.50 : x
2. Step 2: Convert to fraction form
   10,780.62/16,172.58 = 3,853.50/x
3. Step 3: Cross multiply
   10,780.62x = 16,172.58 × 3,853.50
4. Step 4: Simplify right side
   10,780.62x = 62,321,037.03
5. Step 5: Solve for x
   x = 62,321,037.03/10,780.62
6. Step 6: Final answer
   x = 5,780.84