Finding the Fourth Proportional to 9,962.10, 13,747.70 and 5,485.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,962.10 : 13,747.70 = 5,485.84 : x
2. Step 2: Convert to fraction form
   9,962.10/13,747.70 = 5,485.84/x
3. Step 3: Cross multiply
   9,962.10x = 13,747.70 × 5,485.84
4. Step 4: Simplify right side
   9,962.10x = 75,417,682.57
5. Step 5: Solve for x
   x = 75,417,682.57/9,962.10
6. Step 6: Final answer
   x = 7,570.46