Finding the Fourth Proportional to 16,922.10, 25,349.31 and 7,904.06

Step by Step Solution

1. Step 1: Write the proportion equation
   16,922.10 : 25,349.31 = 7,904.06 : x
2. Step 2: Convert to fraction form
   16,922.10/25,349.31 = 7,904.06/x
3. Step 3: Cross multiply
   16,922.10x = 25,349.31 × 7,904.06
4. Step 4: Simplify right side
   16,922.10x = 200,362,340.45
5. Step 5: Solve for x
   x = 200,362,340.45/16,922.10
6. Step 6: Final answer
   x = 11,840.28