Finding the Fourth Proportional to 8,331.84, 12,499.59 and 2,789.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,331.84 : 12,499.59 = 2,789.16 : x
2. Step 2: Convert to fraction form
   8,331.84/12,499.59 = 2,789.16/x
3. Step 3: Cross multiply
   8,331.84x = 12,499.59 × 2,789.16
4. Step 4: Simplify right side
   8,331.84x = 34,863,356.44
5. Step 5: Solve for x
   x = 34,863,356.44/8,331.84
6. Step 6: Final answer
   x = 4,184.35