Finding the Fourth Proportional to 10,419.04, 15,662.42 and 8,361.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,419.04 : 15,662.42 = 8,361.59 : x
2. Step 2: Convert to fraction form
   10,419.04/15,662.42 = 8,361.59/x
3. Step 3: Cross multiply
   10,419.04x = 15,662.42 × 8,361.59
4. Step 4: Simplify right side
   10,419.04x = 130,962,669.20
5. Step 5: Solve for x
   x = 130,962,669.20/10,419.04
6. Step 6: Final answer
   x = 12,569.56