Finding the Fourth Proportional to 200,124.10, 276,173.43 and 109,478.12

Step by Step Solution

1. Step 1: Write the proportion equation
   200,124.10 : 276,173.43 = 109,478.12 : x
2. Step 2: Convert to fraction form
   200,124.10/276,173.43 = 109,478.12/x
3. Step 3: Cross multiply
   200,124.10x = 276,173.43 × 109,478.12
4. Step 4: Simplify right side
   200,124.10x = 30,234,947,910.35
5. Step 5: Solve for x
   x = 30,234,947,910.35/200,124.10
6. Step 6: Final answer
   x = 151,080.99