Finding the Fourth Proportional to 10,931.75, 16,397.40 and 3,542.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,931.75 : 16,397.40 = 3,542.30 : x
2. Step 2: Convert to fraction form
   10,931.75/16,397.40 = 3,542.30/x
3. Step 3: Cross multiply
   10,931.75x = 16,397.40 × 3,542.30
4. Step 4: Simplify right side
   10,931.75x = 58,084,510.02
5. Step 5: Solve for x
   x = 58,084,510.02/10,931.75
6. Step 6: Final answer
   x = 5,313.38