Finding the Fourth Proportional to 6,869.50, 9,479.86 and 3,725.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,869.50 : 9,479.86 = 3,725.69 : x
2. Step 2: Convert to fraction form
   6,869.50/9,479.86 = 3,725.69/x
3. Step 3: Cross multiply
   6,869.50x = 9,479.86 × 3,725.69
4. Step 4: Simplify right side
   6,869.50x = 35,318,962.89
5. Step 5: Solve for x
   x = 35,318,962.89/6,869.50
6. Step 6: Final answer
   x = 5,141.42