Finding the Fourth Proportional to 10,945.32, 16,418.86 and 3,154.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,945.32 : 16,418.86 = 3,154.28 : x
2. Step 2: Convert to fraction form
   10,945.32/16,418.86 = 3,154.28/x
3. Step 3: Cross multiply
   10,945.32x = 16,418.86 × 3,154.28
4. Step 4: Simplify right side
   10,945.32x = 51,789,681.72
5. Step 5: Solve for x
   x = 51,789,681.72/10,945.32
6. Step 6: Final answer
   x = 4,731.67