Finding the Fourth Proportional to 8,071.50, 12,100.32 and 2,803.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,071.50 : 12,100.32 = 2,803.20 : x
2. Step 2: Convert to fraction form
   8,071.50/12,100.32 = 2,803.20/x
3. Step 3: Cross multiply
   8,071.50x = 12,100.32 × 2,803.20
4. Step 4: Simplify right side
   8,071.50x = 33,919,617.02
5. Step 5: Solve for x
   x = 33,919,617.02/8,071.50
6. Step 6: Final answer
   x = 4,202.39