Finding the Fourth Proportional to 8,531.30, 12,798.03 and 3,336.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,531.30 : 12,798.03 = 3,336.50 : x
2. Step 2: Convert to fraction form
   8,531.30/12,798.03 = 3,336.50/x
3. Step 3: Cross multiply
   8,531.30x = 12,798.03 × 3,336.50
4. Step 4: Simplify right side
   8,531.30x = 42,700,671.60
5. Step 5: Solve for x
   x = 42,700,671.60/8,531.30
6. Step 6: Final answer
   x = 5,005.18