Finding the Fourth Proportional to 10,913.91, 16,357.92 and 4,981.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,913.91 : 16,357.92 = 4,981.69 : x
2. Step 2: Convert to fraction form
   10,913.91/16,357.92 = 4,981.69/x
3. Step 3: Cross multiply
   10,913.91x = 16,357.92 × 4,981.69
4. Step 4: Simplify right side
   10,913.91x = 81,490,086.48
5. Step 5: Solve for x
   x = 81,490,086.48/10,913.91
6. Step 6: Final answer
   x = 7,466.63