Finding the Fourth Proportional to 9,025.15, 13,539.55 and 3,185.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,025.15 : 13,539.55 = 3,185.86 : x
2. Step 2: Convert to fraction form
   9,025.15/13,539.55 = 3,185.86/x
3. Step 3: Cross multiply
   9,025.15x = 13,539.55 × 3,185.86
4. Step 4: Simplify right side
   9,025.15x = 43,135,094.83
5. Step 5: Solve for x
   x = 43,135,094.83/9,025.15
6. Step 6: Final answer
   x = 4,779.43