Finding the Fourth Proportional to 35,580.45, 49,100.55 and 19,665.18

Step by Step Solution

1. Step 1: Write the proportion equation
   35,580.45 : 49,100.55 = 19,665.18 : x
2. Step 2: Convert to fraction form
   35,580.45/49,100.55 = 19,665.18/x
3. Step 3: Cross multiply
   35,580.45x = 49,100.55 × 19,665.18
4. Step 4: Simplify right side
   35,580.45x = 965,571,153.85
5. Step 5: Solve for x
   x = 965,571,153.85/35,580.45
6. Step 6: Final answer
   x = 27,137.69