Finding the Fourth Proportional to 9,141.95, 12,615.89 and 4,950.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,141.95 : 12,615.89 = 4,950.20 : x
2. Step 2: Convert to fraction form
   9,141.95/12,615.89 = 4,950.20/x
3. Step 3: Cross multiply
   9,141.95x = 12,615.89 × 4,950.20
4. Step 4: Simplify right side
   9,141.95x = 62,451,114.50
5. Step 5: Solve for x
   x = 62,451,114.50/9,141.95
6. Step 6: Final answer
   x = 6,831.27