Finding the Fourth Proportional to 16,744.55, 25,118.86 and 7,855.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,744.55 : 25,118.86 = 7,855.30 : x
2. Step 2: Convert to fraction form
   16,744.55/25,118.86 = 7,855.30/x
3. Step 3: Cross multiply
   16,744.55x = 25,118.86 × 7,855.30
4. Step 4: Simplify right side
   16,744.55x = 197,316,098.52
5. Step 5: Solve for x
   x = 197,316,098.52/16,744.55
6. Step 6: Final answer
   x = 11,783.90