Finding the Fourth Proportional to 6,672.42, 9,208.32 and 3,688.38

Step by Step Solution

1. Step 1: Write the proportion equation
   6,672.42 : 9,208.32 = 3,688.38 : x
2. Step 2: Convert to fraction form
   6,672.42/9,208.32 = 3,688.38/x
3. Step 3: Cross multiply
   6,672.42x = 9,208.32 × 3,688.38
4. Step 4: Simplify right side
   6,672.42x = 33,963,783.32
5. Step 5: Solve for x
   x = 33,963,783.32/6,672.42
6. Step 6: Final answer
   x = 5,090.17