Finding the Fourth Proportional to 6,128.79, 9,123.87 and 6,092.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128.79 : 9,123.87 = 6,092.34 : x
2. Step 2: Convert to fraction form
   6,128.79/9,123.87 = 6,092.34/x
3. Step 3: Cross multiply
   6,128.79x = 9,123.87 × 6,092.34
4. Step 4: Simplify right side
   6,128.79x = 55,585,687.69
5. Step 5: Solve for x
   x = 55,585,687.69/6,128.79
6. Step 6: Final answer
   x = 9,069.60