Finding the Fourth Proportional to 8,259.56, 12,389.42 and 2,103.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,259.56 : 12,389.42 = 2,103.56 : x
2. Step 2: Convert to fraction form
   8,259.56/12,389.42 = 2,103.56/x
3. Step 3: Cross multiply
   8,259.56x = 12,389.42 × 2,103.56
4. Step 4: Simplify right side
   8,259.56x = 26,061,888.34
5. Step 5: Solve for x
   x = 26,061,888.34/8,259.56
6. Step 6: Final answer
   x = 3,155.36