Finding the Fourth Proportional to 12,435.64, 18,654.27 and 5,039.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,435.64 : 18,654.27 = 5,039.94 : x
2. Step 2: Convert to fraction form
   12,435.64/18,654.27 = 5,039.94/x
3. Step 3: Cross multiply
   12,435.64x = 18,654.27 × 5,039.94
4. Step 4: Simplify right side
   12,435.64x = 94,016,401.54
5. Step 5: Solve for x
   x = 94,016,401.54/12,435.64
6. Step 6: Final answer
   x = 7,560.24