Finding the Fourth Proportional to 9,961.37, 13,746.74 and 5,485.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,961.37 : 13,746.74 = 5,485.22 : x
2. Step 2: Convert to fraction form
   9,961.37/13,746.74 = 5,485.22/x
3. Step 3: Cross multiply
   9,961.37x = 13,746.74 × 5,485.22
4. Step 4: Simplify right side
   9,961.37x = 75,403,797.02
5. Step 5: Solve for x
   x = 75,403,797.02/9,961.37
6. Step 6: Final answer
   x = 7,569.62