Finding the Fourth Proportional to 10,942.30, 16,390.77 and 5,103.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,942.30 : 16,390.77 = 5,103.82 : x
2. Step 2: Convert to fraction form
   10,942.30/16,390.77 = 5,103.82/x
3. Step 3: Cross multiply
   10,942.30x = 16,390.77 × 5,103.82
4. Step 4: Simplify right side
   10,942.30x = 83,655,539.74
5. Step 5: Solve for x
   x = 83,655,539.74/10,942.30
6. Step 6: Final answer
   x = 7,645.15