Finding the Fourth Proportional to 8,131.58, 11,222.82 and 5,903.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.58 : 11,222.82 = 5,903.57 : x
2. Step 2: Convert to fraction form
   8,131.58/11,222.82 = 5,903.57/x
3. Step 3: Cross multiply
   8,131.58x = 11,222.82 × 5,903.57
4. Step 4: Simplify right side
   8,131.58x = 66,254,703.47
5. Step 5: Solve for x
   x = 66,254,703.47/8,131.58
6. Step 6: Final answer
   x = 8,147.83