Finding the Fourth Proportional to 12,245.72, 16,899.18 and 6,656.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,245.72 : 16,899.18 = 6,656.72 : x
2. Step 2: Convert to fraction form
   12,245.72/16,899.18 = 6,656.72/x
3. Step 3: Cross multiply
   12,245.72x = 16,899.18 × 6,656.72
4. Step 4: Simplify right side
   12,245.72x = 112,493,109.49
5. Step 5: Solve for x
   x = 112,493,109.49/12,245.72
6. Step 6: Final answer
   x = 9,186.32