Finding the Fourth Proportional to 6,918.53, 9,547.69 and 3,774.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,918.53 : 9,547.69 = 3,774.72 : x
2. Step 2: Convert to fraction form
   6,918.53/9,547.69 = 3,774.72/x
3. Step 3: Cross multiply
   6,918.53x = 9,547.69 × 3,774.72
4. Step 4: Simplify right side
   6,918.53x = 36,039,846.96
5. Step 5: Solve for x
   x = 36,039,846.96/6,918.53
6. Step 6: Final answer
   x = 5,209.18