Finding the Fourth Proportional to 13,271.55, 18,316.76 and 7,969.29

Step by Step Solution

1. Step 1: Write the proportion equation
   13,271.55 : 18,316.76 = 7,969.29 : x
2. Step 2: Convert to fraction form
   13,271.55/18,316.76 = 7,969.29/x
3. Step 3: Cross multiply
   13,271.55x = 18,316.76 × 7,969.29
4. Step 4: Simplify right side
   13,271.55x = 145,971,532.45
5. Step 5: Solve for x
   x = 145,971,532.45/13,271.55
6. Step 6: Final answer
   x = 10,998.83