Finding the Fourth Proportional to 8,875.98, 12,249.81 and 5,099.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,875.98 : 12,249.81 = 5,099.31 : x
2. Step 2: Convert to fraction form
   8,875.98/12,249.81 = 5,099.31/x
3. Step 3: Cross multiply
   8,875.98x = 12,249.81 × 5,099.31
4. Step 4: Simplify right side
   8,875.98x = 62,465,578.63
5. Step 5: Solve for x
   x = 62,465,578.63/8,875.98
6. Step 6: Final answer
   x = 7,037.60