Finding the Fourth Proportional to 12,889.38, 17,787.04 and 7,584.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,889.38 : 17,787.04 = 7,584.54 : x
2. Step 2: Convert to fraction form
   12,889.38/17,787.04 = 7,584.54/x
3. Step 3: Cross multiply
   12,889.38x = 17,787.04 × 7,584.54
4. Step 4: Simplify right side
   12,889.38x = 134,906,389.50
5. Step 5: Solve for x
   x = 134,906,389.50/12,889.38
6. Step 6: Final answer
   x = 10,466.48