Finding the Fourth Proportional to 12,389.28, 18,583.82 and 3,029.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,389.28 : 18,583.82 = 3,029.34 : x
2. Step 2: Convert to fraction form
   12,389.28/18,583.82 = 3,029.34/x
3. Step 3: Cross multiply
   12,389.28x = 18,583.82 × 3,029.34
4. Step 4: Simplify right side
   12,389.28x = 56,296,709.28
5. Step 5: Solve for x
   x = 56,296,709.28/12,389.28
6. Step 6: Final answer
   x = 4,543.99