Finding the Fourth Proportional to 16,785.78, 25,175.16 and 5,096.40

Step by Step Solution

1. Step 1: Write the proportion equation
   16,785.78 : 25,175.16 = 5,096.40 : x
2. Step 2: Convert to fraction form
   16,785.78/25,175.16 = 5,096.40/x
3. Step 3: Cross multiply
   16,785.78x = 25,175.16 × 5,096.40
4. Step 4: Simplify right side
   16,785.78x = 128,302,685.42
5. Step 5: Solve for x
   x = 128,302,685.42/16,785.78
6. Step 6: Final answer
   x = 7,643.53