Finding the Fourth Proportional to 6,662.32, 9,191.20 and 4,674.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,662.32 : 9,191.20 = 4,674.18 : x
2. Step 2: Convert to fraction form
   6,662.32/9,191.20 = 4,674.18/x
3. Step 3: Cross multiply
   6,662.32x = 9,191.20 × 4,674.18
4. Step 4: Simplify right side
   6,662.32x = 42,961,323.22
5. Step 5: Solve for x
   x = 42,961,323.22/6,662.32
6. Step 6: Final answer
   x = 6,448.40