Finding the Fourth Proportional to 12,635.16, 18,944.63 and 5,244.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,635.16 : 18,944.63 = 5,244.72 : x
2. Step 2: Convert to fraction form
   12,635.16/18,944.63 = 5,244.72/x
3. Step 3: Cross multiply
   12,635.16x = 18,944.63 × 5,244.72
4. Step 4: Simplify right side
   12,635.16x = 99,359,253.63
5. Step 5: Solve for x
   x = 99,359,253.63/12,635.16
6. Step 6: Final answer
   x = 7,863.71