Finding the Fourth Proportional to 10,800.74, 16,199.64 and 4,231.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,800.74 : 16,199.64 = 4,231.52 : x
2. Step 2: Convert to fraction form
   10,800.74/16,199.64 = 4,231.52/x
3. Step 3: Cross multiply
   10,800.74x = 16,199.64 × 4,231.52
4. Step 4: Simplify right side
   10,800.74x = 68,549,100.65
5. Step 5: Solve for x
   x = 68,549,100.65/10,800.74
6. Step 6: Final answer
   x = 6,346.70