Finding the Fourth Proportional to 9,962.18, 13,747.71 and 5,485.85

Step by Step Solution

1. Step 1: Write the proportion equation
   9,962.18 : 13,747.71 = 5,485.85 : x
2. Step 2: Convert to fraction form
   9,962.18/13,747.71 = 5,485.85/x
3. Step 3: Cross multiply
   9,962.18x = 13,747.71 × 5,485.85
4. Step 4: Simplify right side
   9,962.18x = 75,417,874.90
5. Step 5: Solve for x
   x = 75,417,874.90/9,962.18
6. Step 6: Final answer
   x = 7,570.42