Finding the Fourth Proportional to 6,128.54, 9,123.50 and 6,092.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128.54 : 9,123.50 = 6,092.09 : x
2. Step 2: Convert to fraction form
   6,128.54/9,123.50 = 6,092.09/x
3. Step 3: Cross multiply
   6,128.54x = 9,123.50 × 6,092.09
4. Step 4: Simplify right side
   6,128.54x = 55,581,152.65
5. Step 5: Solve for x
   x = 55,581,152.65/6,128.54
6. Step 6: Final answer
   x = 9,069.23