Finding the Fourth Proportional to 10,103.55, 15,158.97 and 5,175.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,103.55 : 15,158.97 = 5,175.51 : x
2. Step 2: Convert to fraction form
   10,103.55/15,158.97 = 5,175.51/x
3. Step 3: Cross multiply
   10,103.55x = 15,158.97 × 5,175.51
4. Step 4: Simplify right side
   10,103.55x = 78,455,400.82
5. Step 5: Solve for x
   x = 78,455,400.82/10,103.55
6. Step 6: Final answer
   x = 7,765.13