Finding the Fourth Proportional to 5,901.19, 8,145.46 and 3,805.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,901.19 : 8,145.46 = 3,805.31 : x
2. Step 2: Convert to fraction form
   5,901.19/8,145.46 = 3,805.31/x
3. Step 3: Cross multiply
   5,901.19x = 8,145.46 × 3,805.31
4. Step 4: Simplify right side
   5,901.19x = 30,996,025.51
5. Step 5: Solve for x
   x = 30,996,025.51/5,901.19
6. Step 6: Final answer
   x = 5,252.51