Finding the Fourth Proportional to 12,635.10, 18,949.02 and 4,842.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,635.10 : 18,949.02 = 4,842.12 : x
2. Step 2: Convert to fraction form
   12,635.10/18,949.02 = 4,842.12/x
3. Step 3: Cross multiply
   12,635.10x = 18,949.02 × 4,842.12
4. Step 4: Simplify right side
   12,635.10x = 91,753,428.72
5. Step 5: Solve for x
   x = 91,753,428.72/12,635.10
6. Step 6: Final answer
   x = 7,261.79