Finding the Fourth Proportional to 16,787.57, 25,181.91 and 5,100.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,787.57 : 25,181.91 = 5,100.75 : x
2. Step 2: Convert to fraction form
   16,787.57/25,181.91 = 5,100.75/x
3. Step 3: Cross multiply
   16,787.57x = 25,181.91 × 5,100.75
4. Step 4: Simplify right side
   16,787.57x = 128,446,627.43
5. Step 5: Solve for x
   x = 128,446,627.43/16,787.57
6. Step 6: Final answer
   x = 7,651.30