Finding the Fourth Proportional to 10,465.49, 15,699.62 and 3,890.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,465.49 : 15,699.62 = 3,890.82 : x
2. Step 2: Convert to fraction form
   10,465.49/15,699.62 = 3,890.82/x
3. Step 3: Cross multiply
   10,465.49x = 15,699.62 × 3,890.82
4. Step 4: Simplify right side
   10,465.49x = 61,084,376.03
5. Step 5: Solve for x
   x = 61,084,376.03/10,465.49
6. Step 6: Final answer
   x = 5,836.75