Finding the Fourth Proportional to 12,485.31, 18,716.97 and 5,095.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,485.31 : 18,716.97 = 5,095.98 : x
2. Step 2: Convert to fraction form
   12,485.31/18,716.97 = 5,095.98/x
3. Step 3: Cross multiply
   12,485.31x = 18,716.97 × 5,095.98
4. Step 4: Simplify right side
   12,485.31x = 95,381,304.78
5. Step 5: Solve for x
   x = 95,381,304.78/12,485.31
6. Step 6: Final answer
   x = 7,639.48