Finding the Fourth Proportional to 10,103.18, 13,940.04 and 6,123.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,103.18 : 13,940.04 = 6,123.42 : x
2. Step 2: Convert to fraction form
   10,103.18/13,940.04 = 6,123.42/x
3. Step 3: Cross multiply
   10,103.18x = 13,940.04 × 6,123.42
4. Step 4: Simplify right side
   10,103.18x = 85,360,719.74
5. Step 5: Solve for x
   x = 85,360,719.74/10,103.18
6. Step 6: Final answer
   x = 8,448.90