Finding the Fourth Proportional to 9,887.38, 13,644.72 and 5,908.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,887.38 : 13,644.72 = 5,908.84 : x
2. Step 2: Convert to fraction form
   9,887.38/13,644.72 = 5,908.84/x
3. Step 3: Cross multiply
   9,887.38x = 13,644.72 × 5,908.84
4. Step 4: Simplify right side
   9,887.38x = 80,624,467.32
5. Step 5: Solve for x
   x = 80,624,467.32/9,887.38
6. Step 6: Final answer
   x = 8,154.28