Finding the Fourth Proportional to 12,481.63, 18,715.39 and 5,077.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,481.63 : 18,715.39 = 5,077.42 : x
2. Step 2: Convert to fraction form
   12,481.63/18,715.39 = 5,077.42/x
3. Step 3: Cross multiply
   12,481.63x = 18,715.39 × 5,077.42
4. Step 4: Simplify right side
   12,481.63x = 95,025,836.01
5. Step 5: Solve for x
   x = 95,025,836.01/12,481.63
6. Step 6: Final answer
   x = 7,613.26