Finding the Fourth Proportional to 7,522.50, 10,380.89 and 4,165.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,522.50 : 10,380.89 = 4,165.12 : x
2. Step 2: Convert to fraction form
   7,522.50/10,380.89 = 4,165.12/x
3. Step 3: Cross multiply
   7,522.50x = 10,380.89 × 4,165.12
4. Step 4: Simplify right side
   7,522.50x = 43,237,579.83
5. Step 5: Solve for x
   x = 43,237,579.83/7,522.50
6. Step 6: Final answer
   x = 5,747.77