Finding the Fourth Proportional to 10,901.39, 16,328.81 and 5,270.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,901.39 : 16,328.81 = 5,270.54 : x
2. Step 2: Convert to fraction form
   10,901.39/16,328.81 = 5,270.54/x
3. Step 3: Cross multiply
   10,901.39x = 16,328.81 × 5,270.54
4. Step 4: Simplify right side
   10,901.39x = 86,061,577.79
5. Step 5: Solve for x
   x = 86,061,577.79/10,901.39
6. Step 6: Final answer
   x = 7,894.55