Finding the Fourth Proportional to 200,042.61, 276,048.61 and 109,380.98

Step by Step Solution

1. Step 1: Write the proportion equation
   200,042.61 : 276,048.61 = 109,380.98 : x
2. Step 2: Convert to fraction form
   200,042.61/276,048.61 = 109,380.98/x
3. Step 3: Cross multiply
   200,042.61x = 276,048.61 × 109,380.98
4. Step 4: Simplify right side
   200,042.61x = 30,194,467,906.11
5. Step 5: Solve for x
   x = 30,194,467,906.11/200,042.61
6. Step 6: Final answer
   x = 150,940.18