Finding the Fourth Proportional to 10,477.81, 15,716.81 and 2,686.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,477.81 : 15,716.81 = 2,686.69 : x
2. Step 2: Convert to fraction form
   10,477.81/15,716.81 = 2,686.69/x
3. Step 3: Cross multiply
   10,477.81x = 15,716.81 × 2,686.69
4. Step 4: Simplify right side
   10,477.81x = 42,226,196.26
5. Step 5: Solve for x
   x = 42,226,196.26/10,477.81
6. Step 6: Final answer
   x = 4,030.06