Finding the Fourth Proportional to 16,887.15, 23,304.15 and 9,435.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,887.15 : 23,304.15 = 9,435.15 : x
2. Step 2: Convert to fraction form
   16,887.15/23,304.15 = 9,435.15/x
3. Step 3: Cross multiply
   16,887.15x = 23,304.15 × 9,435.15
4. Step 4: Simplify right side
   16,887.15x = 219,878,150.87
5. Step 5: Solve for x
   x = 219,878,150.87/16,887.15
6. Step 6: Final answer
   x = 13,020.44