Finding the Fourth Proportional to 9,960.14, 14,915.56 and 5,787.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,960.14 : 14,915.56 = 5,787.49 : x
2. Step 2: Convert to fraction form
   9,960.14/14,915.56 = 5,787.49/x
3. Step 3: Cross multiply
   9,960.14x = 14,915.56 × 5,787.49
4. Step 4: Simplify right side
   9,960.14x = 86,323,654.34
5. Step 5: Solve for x
   x = 86,323,654.34/9,960.14
6. Step 6: Final answer
   x = 8,666.92