Finding the Fourth Proportional to 8,389.56, 11,590.15 and 5,525.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,389.56 : 11,590.15 = 5,525.10 : x
2. Step 2: Convert to fraction form
   8,389.56/11,590.15 = 5,525.10/x
3. Step 3: Cross multiply
   8,389.56x = 11,590.15 × 5,525.10
4. Step 4: Simplify right side
   8,389.56x = 64,036,737.77
5. Step 5: Solve for x
   x = 64,036,737.77/8,389.56
6. Step 6: Final answer
   x = 7,632.91