Finding the Fourth Proportional to 12,463.09, 18,698.17 and 5,072.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,463.09 : 18,698.17 = 5,072.86 : x
2. Step 2: Convert to fraction form
   12,463.09/18,698.17 = 5,072.86/x
3. Step 3: Cross multiply
   12,463.09x = 18,698.17 × 5,072.86
4. Step 4: Simplify right side
   12,463.09x = 94,853,117.86
5. Step 5: Solve for x
   x = 94,853,117.86/12,463.09
6. Step 6: Final answer
   x = 7,610.72