Finding the Fourth Proportional to 9,030.86, 13,543.48 and 3,186.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,030.86 : 13,543.48 = 3,186.10 : x
2. Step 2: Convert to fraction form
   9,030.86/13,543.48 = 3,186.10/x
3. Step 3: Cross multiply
   9,030.86x = 13,543.48 × 3,186.10
4. Step 4: Simplify right side
   9,030.86x = 43,150,797.98
5. Step 5: Solve for x
   x = 43,150,797.98/9,030.86
6. Step 6: Final answer
   x = 4,778.15