Finding the Fourth Proportional to 8,113.55, 11,196.69 and 4,387.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,113.55 : 11,196.69 = 4,387.55 : x
2. Step 2: Convert to fraction form
   8,113.55/11,196.69 = 4,387.55/x
3. Step 3: Cross multiply
   8,113.55x = 11,196.69 × 4,387.55
4. Step 4: Simplify right side
   8,113.55x = 49,126,039.67
5. Step 5: Solve for x
   x = 49,126,039.67/8,113.55
6. Step 6: Final answer
   x = 6,054.82