Finding the Fourth Proportional to 9,931.48, 14,899.50 and 2,911.33

Step by Step Solution

1. Step 1: Write the proportion equation
   9,931.48 : 14,899.50 = 2,911.33 : x
2. Step 2: Convert to fraction form
   9,931.48/14,899.50 = 2,911.33/x
3. Step 3: Cross multiply
   9,931.48x = 14,899.50 × 2,911.33
4. Step 4: Simplify right side
   9,931.48x = 43,377,361.34
5. Step 5: Solve for x
   x = 43,377,361.34/9,931.48
6. Step 6: Final answer
   x = 4,367.66