Finding the Fourth Proportional to 10,465.82, 15,699.24 and 3,890.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,465.82 : 15,699.24 = 3,890.47 : x
2. Step 2: Convert to fraction form
   10,465.82/15,699.24 = 3,890.47/x
3. Step 3: Cross multiply
   10,465.82x = 15,699.24 × 3,890.47
4. Step 4: Simplify right side
   10,465.82x = 61,077,401.30
5. Step 5: Solve for x
   x = 61,077,401.30/10,465.82
6. Step 6: Final answer
   x = 5,835.89