Finding the Fourth Proportional to 10,855.62, 14,978.52 and 6,872.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,855.62 : 14,978.52 = 6,872.04 : x
2. Step 2: Convert to fraction form
   10,855.62/14,978.52 = 6,872.04/x
3. Step 3: Cross multiply
   10,855.62x = 14,978.52 × 6,872.04
4. Step 4: Simplify right side
   10,855.62x = 102,932,988.58
5. Step 5: Solve for x
   x = 102,932,988.58/10,855.62
6. Step 6: Final answer
   x = 9,482.00