Finding the Fourth Proportional to 10,140.61, 13,974.10 and 7,753.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,140.61 : 13,974.10 = 7,753.28 : x
2. Step 2: Convert to fraction form
   10,140.61/13,974.10 = 7,753.28/x
3. Step 3: Cross multiply
   10,140.61x = 13,974.10 × 7,753.28
4. Step 4: Simplify right side
   10,140.61x = 108,345,110.05
5. Step 5: Solve for x
   x = 108,345,110.05/10,140.61
6. Step 6: Final answer
   x = 10,684.28