Finding the Fourth Proportional to 10,942.02, 16,409.03 and 3,920.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,942.02 : 16,409.03 = 3,920.16 : x
2. Step 2: Convert to fraction form
   10,942.02/16,409.03 = 3,920.16/x
3. Step 3: Cross multiply
   10,942.02x = 16,409.03 × 3,920.16
4. Step 4: Simplify right side
   10,942.02x = 64,326,017.80
5. Step 5: Solve for x
   x = 64,326,017.80/10,942.02
6. Step 6: Final answer
   x = 5,878.80