Finding the Fourth Proportional to 12,778.02, 17,523.72 and 12,245.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,778.02 : 17,523.72 = 12,245.94 : x
2. Step 2: Convert to fraction form
   12,778.02/17,523.72 = 12,245.94/x
3. Step 3: Cross multiply
   12,778.02x = 17,523.72 × 12,245.94
4. Step 4: Simplify right side
   12,778.02x = 214,594,423.70
5. Step 5: Solve for x
   x = 214,594,423.70/12,778.02
6. Step 6: Final answer
   x = 16,794.03