Finding the Fourth Proportional to 540,847.91, 811,404.71 and 185,867.03

Step by Step Solution

1. Step 1: Write the proportion equation
   540,847.91 : 811,404.71 = 185,867.03 : x
2. Step 2: Convert to fraction form
   540,847.91/811,404.71 = 185,867.03/x
3. Step 3: Cross multiply
   540,847.91x = 811,404.71 × 185,867.03
4. Step 4: Simplify right side
   540,847.91x = 150,813,386,068.89
5. Step 5: Solve for x
   x = 150,813,386,068.89/540,847.91
6. Step 6: Final answer
   x = 278,846.20