Finding the Fourth Proportional to 9,922.71, 14,878.05 and 3,911.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,922.71 : 14,878.05 = 3,911.61 : x
2. Step 2: Convert to fraction form
   9,922.71/14,878.05 = 3,911.61/x
3. Step 3: Cross multiply
   9,922.71x = 14,878.05 × 3,911.61
4. Step 4: Simplify right side
   9,922.71x = 58,197,129.16
5. Step 5: Solve for x
   x = 58,197,129.16/9,922.71
6. Step 6: Final answer
   x = 5,865.04