Finding the Fourth Proportional to 185,640.03, 256,124.52 and 109,134.72

Step by Step Solution

1. Step 1: Write the proportion equation
   185,640.03 : 256,124.52 = 109,134.72 : x
2. Step 2: Convert to fraction form
   185,640.03/256,124.52 = 109,134.72/x
3. Step 3: Cross multiply
   185,640.03x = 256,124.52 × 109,134.72
4. Step 4: Simplify right side
   185,640.03x = 27,952,077,775.33
5. Step 5: Solve for x
   x = 27,952,077,775.33/185,640.03
6. Step 6: Final answer
   x = 150,571.39