Finding the Fourth Proportional to 12,472.04, 18,708.82 and 5,072.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,472.04 : 18,708.82 = 5,072.47 : x
2. Step 2: Convert to fraction form
   12,472.04/18,708.82 = 5,072.47/x
3. Step 3: Cross multiply
   12,472.04x = 18,708.82 × 5,072.47
4. Step 4: Simplify right side
   12,472.04x = 94,899,868.73
5. Step 5: Solve for x
   x = 94,899,868.73/12,472.04
6. Step 6: Final answer
   x = 7,609.01