Finding the Fourth Proportional to 12,054.50, 18,050.59 and 8,317.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,054.50 : 18,050.59 = 8,317.80 : x
2. Step 2: Convert to fraction form
   12,054.50/18,050.59 = 8,317.80/x
3. Step 3: Cross multiply
   12,054.50x = 18,050.59 × 8,317.80
4. Step 4: Simplify right side
   12,054.50x = 150,141,065.66
5. Step 5: Solve for x
   x = 150,141,065.66/12,054.50
6. Step 6: Final answer
   x = 12,455.19