Finding the Fourth Proportional to 10,607.84, 14,638.56 and 8,087.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,607.84 : 14,638.56 = 8,087.12 : x
2. Step 2: Convert to fraction form
   10,607.84/14,638.56 = 8,087.12/x
3. Step 3: Cross multiply
   10,607.84x = 14,638.56 × 8,087.12
4. Step 4: Simplify right side
   10,607.84x = 118,383,791.35
5. Step 5: Solve for x
   x = 118,383,791.35/10,607.84
6. Step 6: Final answer
   x = 11,160.03