Finding the Fourth Proportional to 8,429.94, 12,645.45 and 2,883.87

Step by Step Solution

1. Step 1: Write the proportion equation
   8,429.94 : 12,645.45 = 2,883.87 : x
2. Step 2: Convert to fraction form
   8,429.94/12,645.45 = 2,883.87/x
3. Step 3: Cross multiply
   8,429.94x = 12,645.45 × 2,883.87
4. Step 4: Simplify right side
   8,429.94x = 36,467,833.89
5. Step 5: Solve for x
   x = 36,467,833.89/8,429.94
6. Step 6: Final answer
   x = 4,325.99