Finding the Fourth Proportional to 14,479.25, 19,981.37 and 7,855.25

Step by Step Solution

1. Step 1: Write the proportion equation
   14,479.25 : 19,981.37 = 7,855.25 : x
2. Step 2: Convert to fraction form
   14,479.25/19,981.37 = 7,855.25/x
3. Step 3: Cross multiply
   14,479.25x = 19,981.37 × 7,855.25
4. Step 4: Simplify right side
   14,479.25x = 156,958,617.42
5. Step 5: Solve for x
   x = 156,958,617.42/14,479.25
6. Step 6: Final answer
   x = 10,840.25