Finding the Fourth Proportional to 7,074.72, 10,613.28 and 3,181.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,074.72 : 10,613.28 = 3,181.86 : x
2. Step 2: Convert to fraction form
   7,074.72/10,613.28 = 3,181.86/x
3. Step 3: Cross multiply
   7,074.72x = 10,613.28 × 3,181.86
4. Step 4: Simplify right side
   7,074.72x = 33,769,971.10
5. Step 5: Solve for x
   x = 33,769,971.10/7,074.72
6. Step 6: Final answer
   x = 4,773.33