Finding the Fourth Proportional to 7,029.78, 10,536.47 and 3,908.30

Step by Step Solution

1. Step 1: Write the proportion equation
   7,029.78 : 10,536.47 = 3,908.30 : x
2. Step 2: Convert to fraction form
   7,029.78/10,536.47 = 3,908.30/x
3. Step 3: Cross multiply
   7,029.78x = 10,536.47 × 3,908.30
4. Step 4: Simplify right side
   7,029.78x = 41,179,633.02
5. Step 5: Solve for x
   x = 41,179,633.02/7,029.78
6. Step 6: Final answer
   x = 5,857.88