Finding the Fourth Proportional to 13,100.96, 18,072.44 and 7,792

Step by Step Solution

1. Step 1: Write the proportion equation
   13,100.96 : 18,072.44 = 7,792 : x
2. Step 2: Convert to fraction form
   13,100.96/18,072.44 = 7,792/x
3. Step 3: Cross multiply
   13,100.96x = 18,072.44 × 7,792
4. Step 4: Simplify right side
   13,100.96x = 140,820,452.48
5. Step 5: Solve for x
   x = 140,820,452.48/13,100.96
6. Step 6: Final answer
   x = 10,748.87