Finding the Fourth Proportional to 10,103.05, 15,157.58 and 5,176.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,103.05 : 15,157.58 = 5,176.15 : x
2. Step 2: Convert to fraction form
   10,103.05/15,157.58 = 5,176.15/x
3. Step 3: Cross multiply
   10,103.05x = 15,157.58 × 5,176.15
4. Step 4: Simplify right side
   10,103.05x = 78,457,958.32
5. Step 5: Solve for x
   x = 78,457,958.32/10,103.05
6. Step 6: Final answer
   x = 7,765.77