Finding the Fourth Proportional to 5,905.25, 8,150.85 and 3,780.62

Step by Step Solution

1. Step 1: Write the proportion equation
   5,905.25 : 8,150.85 = 3,780.62 : x
2. Step 2: Convert to fraction form
   5,905.25/8,150.85 = 3,780.62/x
3. Step 3: Cross multiply
   5,905.25x = 8,150.85 × 3,780.62
4. Step 4: Simplify right side
   5,905.25x = 30,815,225.77
5. Step 5: Solve for x
   x = 30,815,225.77/5,905.25
6. Step 6: Final answer
   x = 5,218.28