Finding the Fourth Proportional to 8,375.78, 11,559.16 and 5,538.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,375.78 : 11,559.16 = 5,538.22 : x
2. Step 2: Convert to fraction form
   8,375.78/11,559.16 = 5,538.22/x
3. Step 3: Cross multiply
   8,375.78x = 11,559.16 × 5,538.22
4. Step 4: Simplify right side
   8,375.78x = 64,017,171.10
5. Step 5: Solve for x
   x = 64,017,171.10/8,375.78
6. Step 6: Final answer
   x = 7,643.13