Finding the Fourth Proportional to 7,109.36, 10,667.12 and 3,818.60

Step by Step Solution

1. Step 1: Write the proportion equation
   7,109.36 : 10,667.12 = 3,818.60 : x
2. Step 2: Convert to fraction form
   7,109.36/10,667.12 = 3,818.60/x
3. Step 3: Cross multiply
   7,109.36x = 10,667.12 × 3,818.60
4. Step 4: Simplify right side
   7,109.36x = 40,733,464.43
5. Step 5: Solve for x
   x = 40,733,464.43/7,109.36
6. Step 6: Final answer
   x = 5,729.55