Finding the Fourth Proportional to 13,501.98, 18,632.15 and 7,836.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,501.98 : 18,632.15 = 7,836.28 : x
2. Step 2: Convert to fraction form
   13,501.98/18,632.15 = 7,836.28/x
3. Step 3: Cross multiply
   13,501.98x = 18,632.15 × 7,836.28
4. Step 4: Simplify right side
   13,501.98x = 146,006,744.40
5. Step 5: Solve for x
   x = 146,006,744.40/13,501.98
6. Step 6: Final answer
   x = 10,813.73