Finding the Fourth Proportional to 12,103.16, 18,159.17 and 3,783.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,103.16 : 18,159.17 = 3,783.78 : x
2. Step 2: Convert to fraction form
   12,103.16/18,159.17 = 3,783.78/x
3. Step 3: Cross multiply
   12,103.16x = 18,159.17 × 3,783.78
4. Step 4: Simplify right side
   12,103.16x = 68,710,285.34
5. Step 5: Solve for x
   x = 68,710,285.34/12,103.16
6. Step 6: Final answer
   x = 5,677.06