Finding the Fourth Proportional to 10,961.63, 16,435.22 and 3,938.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,961.63 : 16,435.22 = 3,938.12 : x
2. Step 2: Convert to fraction form
   10,961.63/16,435.22 = 3,938.12/x
3. Step 3: Cross multiply
   10,961.63x = 16,435.22 × 3,938.12
4. Step 4: Simplify right side
   10,961.63x = 64,723,868.59
5. Step 5: Solve for x
   x = 64,723,868.59/10,961.63
6. Step 6: Final answer
   x = 5,904.58