Finding the Fourth Proportional to 8,330.51, 12,489.59 and 5,042.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,330.51 : 12,489.59 = 5,042.82 : x
2. Step 2: Convert to fraction form
   8,330.51/12,489.59 = 5,042.82/x
3. Step 3: Cross multiply
   8,330.51x = 12,489.59 × 5,042.82
4. Step 4: Simplify right side
   8,330.51x = 62,982,729.03
5. Step 5: Solve for x
   x = 62,982,729.03/8,330.51
6. Step 6: Final answer
   x = 7,560.49