Finding the Fourth Proportional to 9,961.26, 13,746.67 and 5,485.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,961.26 : 13,746.67 = 5,485.32 : x
2. Step 2: Convert to fraction form
   9,961.26/13,746.67 = 5,485.32/x
3. Step 3: Cross multiply
   9,961.26x = 13,746.67 × 5,485.32
4. Step 4: Simplify right side
   9,961.26x = 75,404,883.88
5. Step 5: Solve for x
   x = 75,404,883.88/9,961.26
6. Step 6: Final answer
   x = 7,569.81