Finding the Fourth Proportional to 10,787.90, 16,181.82 and 3,393

Step by Step Solution

1. Step 1: Write the proportion equation
   10,787.90 : 16,181.82 = 3,393 : x
2. Step 2: Convert to fraction form
   10,787.90/16,181.82 = 3,393/x
3. Step 3: Cross multiply
   10,787.90x = 16,181.82 × 3,393
4. Step 4: Simplify right side
   10,787.90x = 54,904,915.26
5. Step 5: Solve for x
   x = 54,904,915.26/10,787.90
6. Step 6: Final answer
   x = 5,089.49