Finding the Fourth Proportional to 9,931.89, 14,893.20 and 3,356.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,931.89 : 14,893.20 = 3,356.31 : x
2. Step 2: Convert to fraction form
   9,931.89/14,893.20 = 3,356.31/x
3. Step 3: Cross multiply
   9,931.89x = 14,893.20 × 3,356.31
4. Step 4: Simplify right side
   9,931.89x = 49,986,196.09
5. Step 5: Solve for x
   x = 49,986,196.09/9,931.89
6. Step 6: Final answer
   x = 5,032.90