Finding the Fourth Proportional to 10,103.98, 15,150.48 and 5,429.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,103.98 : 15,150.48 = 5,429.56 : x
2. Step 2: Convert to fraction form
   10,103.98/15,150.48 = 5,429.56/x
3. Step 3: Cross multiply
   10,103.98x = 15,150.48 × 5,429.56
4. Step 4: Simplify right side
   10,103.98x = 82,260,440.19
5. Step 5: Solve for x
   x = 82,260,440.19/10,103.98
6. Step 6: Final answer
   x = 8,141.39