Finding the Fourth Proportional to 16,835.27, 25,255.73 and 5,145.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,835.27 : 25,255.73 = 5,145.75 : x
2. Step 2: Convert to fraction form
   16,835.27/25,255.73 = 5,145.75/x
3. Step 3: Cross multiply
   16,835.27x = 25,255.73 × 5,145.75
4. Step 4: Simplify right side
   16,835.27x = 129,959,685.51
5. Step 5: Solve for x
   x = 129,959,685.51/16,835.27
6. Step 6: Final answer
   x = 7,719.49