Finding the Fourth Proportional to 10,995.39, 16,474.59 and 7,091.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,995.39 : 16,474.59 = 7,091.60 : x
2. Step 2: Convert to fraction form
   10,995.39/16,474.59 = 7,091.60/x
3. Step 3: Cross multiply
   10,995.39x = 16,474.59 × 7,091.60
4. Step 4: Simplify right side
   10,995.39x = 116,831,120.07
5. Step 5: Solve for x
   x = 116,831,120.07/10,995.39
6. Step 6: Final answer
   x = 10,625.46