Finding the Fourth Proportional to 8,100.53, 12,131.89 and 6,236.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,100.53 : 12,131.89 = 6,236.86 : x
2. Step 2: Convert to fraction form
   8,100.53/12,131.89 = 6,236.86/x
3. Step 3: Cross multiply
   8,100.53x = 12,131.89 × 6,236.86
4. Step 4: Simplify right side
   8,100.53x = 75,664,899.47
5. Step 5: Solve for x
   x = 75,664,899.47/8,100.53
6. Step 6: Final answer
   x = 9,340.73