Finding the Fourth Proportional to 7,168.50, 9,890.10 and 4,335.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,168.50 : 9,890.10 = 4,335.12 : x
2. Step 2: Convert to fraction form
   7,168.50/9,890.10 = 4,335.12/x
3. Step 3: Cross multiply
   7,168.50x = 9,890.10 × 4,335.12
4. Step 4: Simplify right side
   7,168.50x = 42,874,770.31
5. Step 5: Solve for x
   x = 42,874,770.31/7,168.50
6. Step 6: Final answer
   x = 5,981.00