Finding the Fourth Proportional to 12,250.72, 16,905.98 and 7,470.66

Step by Step Solution

1. Step 1: Write the proportion equation
   12,250.72 : 16,905.98 = 7,470.66 : x
2. Step 2: Convert to fraction form
   12,250.72/16,905.98 = 7,470.66/x
3. Step 3: Cross multiply
   12,250.72x = 16,905.98 × 7,470.66
4. Step 4: Simplify right side
   12,250.72x = 126,298,706.66
5. Step 5: Solve for x
   x = 126,298,706.66/12,250.72
6. Step 6: Final answer
   x = 10,309.49