Finding the Fourth Proportional to 278,105.07, 383,785.83 and 150,780.72

Step by Step Solution

1. Step 1: Write the proportion equation
   278,105.07 : 383,785.83 = 150,780.72 : x
2. Step 2: Convert to fraction form
   278,105.07/383,785.83 = 150,780.72/x
3. Step 3: Cross multiply
   278,105.07x = 383,785.83 × 150,780.72
4. Step 4: Simplify right side
   278,105.07x = 57,867,503,773.20
5. Step 5: Solve for x
   x = 57,867,503,773.20/278,105.07
6. Step 6: Final answer
   x = 208,077.85