Finding the Fourth Proportional to 540,434.08, 810,456.72 and 185,356

Step by Step Solution

1. Step 1: Write the proportion equation
   540,434.08 : 810,456.72 = 185,356 : x
2. Step 2: Convert to fraction form
   540,434.08/810,456.72 = 185,356/x
3. Step 3: Cross multiply
   540,434.08x = 810,456.72 × 185,356
4. Step 4: Simplify right side
   540,434.08x = 150,223,015,792.32
5. Step 5: Solve for x
   x = 150,223,015,792.32/540,434.08
6. Step 6: Final answer
   x = 277,967.33