Finding the Fourth Proportional to 10,890.02, 16,342.32 and 3,964.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,890.02 : 16,342.32 = 3,964.52 : x
2. Step 2: Convert to fraction form
   10,890.02/16,342.32 = 3,964.52/x
3. Step 3: Cross multiply
   10,890.02x = 16,342.32 × 3,964.52
4. Step 4: Simplify right side
   10,890.02x = 64,789,454.49
5. Step 5: Solve for x
   x = 64,789,454.49/10,890.02
6. Step 6: Final answer
   x = 5,949.43