Finding the Fourth Proportional to 10,973.56, 16,455 and 5,425.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,973.56 : 16,455 = 5,425.12 : x
2. Step 2: Convert to fraction form
   10,973.56/16,455 = 5,425.12/x
3. Step 3: Cross multiply
   10,973.56x = 16,455 × 5,425.12
4. Step 4: Simplify right side
   10,973.56x = 89,270,349.60
5. Step 5: Solve for x
   x = 89,270,349.60/10,973.56
6. Step 6: Final answer
   x = 8,135.04