Finding the Fourth Proportional to 7,522.57, 10,376.62 and 5,538.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,522.57 : 10,376.62 = 5,538.25 : x
2. Step 2: Convert to fraction form
   7,522.57/10,376.62 = 5,538.25/x
3. Step 3: Cross multiply
   7,522.57x = 10,376.62 × 5,538.25
4. Step 4: Simplify right side
   7,522.57x = 57,468,315.72
5. Step 5: Solve for x
   x = 57,468,315.72/7,522.57
6. Step 6: Final answer
   x = 7,639.45