Finding the Fourth Proportional to 6,123.18, 9,181.89 and 4,276.38

Step by Step Solution

1. Step 1: Write the proportion equation
   6,123.18 : 9,181.89 = 4,276.38 : x
2. Step 2: Convert to fraction form
   6,123.18/9,181.89 = 4,276.38/x
3. Step 3: Cross multiply
   6,123.18x = 9,181.89 × 4,276.38
4. Step 4: Simplify right side
   6,123.18x = 39,265,250.76
5. Step 5: Solve for x
   x = 39,265,250.76/6,123.18
6. Step 6: Final answer
   x = 6,412.56