Finding the Fourth Proportional to 6,089.58, 9,131.94 and 3,912.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,089.58 : 9,131.94 = 3,912.30 : x
2. Step 2: Convert to fraction form
   6,089.58/9,131.94 = 3,912.30/x
3. Step 3: Cross multiply
   6,089.58x = 9,131.94 × 3,912.30
4. Step 4: Simplify right side
   6,089.58x = 35,726,888.86
5. Step 5: Solve for x
   x = 35,726,888.86/6,089.58
6. Step 6: Final answer
   x = 5,866.89