Finding the Fourth Proportional to 10,618.56, 15,927.78 and 3,693

Step by Step Solution

1. Step 1: Write the proportion equation
   10,618.56 : 15,927.78 = 3,693 : x
2. Step 2: Convert to fraction form
   10,618.56/15,927.78 = 3,693/x
3. Step 3: Cross multiply
   10,618.56x = 15,927.78 × 3,693
4. Step 4: Simplify right side
   10,618.56x = 58,821,291.54
5. Step 5: Solve for x
   x = 58,821,291.54/10,618.56
6. Step 6: Final answer
   x = 5,539.48