Finding the Fourth Proportional to 7,146.78, 9,861.39 and 4,492.32

Step by Step Solution

1. Step 1: Write the proportion equation
   7,146.78 : 9,861.39 = 4,492.32 : x
2. Step 2: Convert to fraction form
   7,146.78/9,861.39 = 4,492.32/x
3. Step 3: Cross multiply
   7,146.78x = 9,861.39 × 4,492.32
4. Step 4: Simplify right side
   7,146.78x = 44,300,519.52
5. Step 5: Solve for x
   x = 44,300,519.52/7,146.78
6. Step 6: Final answer
   x = 6,198.67