Finding the Fourth Proportional to 12,055.58, 16,636.32 and 6,677.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,055.58 : 16,636.32 = 6,677.80 : x
2. Step 2: Convert to fraction form
   12,055.58/16,636.32 = 6,677.80/x
3. Step 3: Cross multiply
   12,055.58x = 16,636.32 × 6,677.80
4. Step 4: Simplify right side
   12,055.58x = 111,094,022.89
5. Step 5: Solve for x
   x = 111,094,022.89/12,055.58
6. Step 6: Final answer
   x = 9,215.15