Finding the Fourth Proportional to 10,870.04, 16,311.54 and 3,945.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,870.04 : 16,311.54 = 3,945.08 : x
2. Step 2: Convert to fraction form
   10,870.04/16,311.54 = 3,945.08/x
3. Step 3: Cross multiply
   10,870.04x = 16,311.54 × 3,945.08
4. Step 4: Simplify right side
   10,870.04x = 64,350,330.22
5. Step 5: Solve for x
   x = 64,350,330.22/10,870.04
6. Step 6: Final answer
   x = 5,919.97