Finding the Fourth Proportional to 10,402.68, 15,606.18 and 3,477

Step by Step Solution

1. Step 1: Write the proportion equation
   10,402.68 : 15,606.18 = 3,477 : x
2. Step 2: Convert to fraction form
   10,402.68/15,606.18 = 3,477/x
3. Step 3: Cross multiply
   10,402.68x = 15,606.18 × 3,477
4. Step 4: Simplify right side
   10,402.68x = 54,262,687.86
5. Step 5: Solve for x
   x = 54,262,687.86/10,402.68
6. Step 6: Final answer
   x = 5,216.22