Finding the Fourth Proportional to 10,015.03, 13,820.18 and 5,538.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,015.03 : 13,820.18 = 5,538.48 : x
2. Step 2: Convert to fraction form
   10,015.03/13,820.18 = 5,538.48/x
3. Step 3: Cross multiply
   10,015.03x = 13,820.18 × 5,538.48
4. Step 4: Simplify right side
   10,015.03x = 76,542,790.53
5. Step 5: Solve for x
   x = 76,542,790.53/10,015.03
6. Step 6: Final answer
   x = 7,642.79