Finding the Fourth Proportional to 9,112.60, 12,582.84 and 5,760.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,112.60 : 12,582.84 = 5,760.82 : x
2. Step 2: Convert to fraction form
   9,112.60/12,582.84 = 5,760.82/x
3. Step 3: Cross multiply
   9,112.60x = 12,582.84 × 5,760.82
4. Step 4: Simplify right side
   9,112.60x = 72,487,476.33
5. Step 5: Solve for x
   x = 72,487,476.33/9,112.60
6. Step 6: Final answer
   x = 7,954.64