Finding the Fourth Proportional to 9,131.92, 13,698.56 and 2,892.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.92 : 13,698.56 = 2,892.42 : x
2. Step 2: Convert to fraction form
   9,131.92/13,698.56 = 2,892.42/x
3. Step 3: Cross multiply
   9,131.92x = 13,698.56 × 2,892.42
4. Step 4: Simplify right side
   9,131.92x = 39,621,996.15
5. Step 5: Solve for x
   x = 39,621,996.15/9,131.92
6. Step 6: Final answer
   x = 4,338.85