Finding the Fourth Proportional to 5,911.48, 8,158.61 and 3,554.08

Step by Step Solution

1. Step 1: Write the proportion equation
   5,911.48 : 8,158.61 = 3,554.08 : x
2. Step 2: Convert to fraction form
   5,911.48/8,158.61 = 3,554.08/x
3. Step 3: Cross multiply
   5,911.48x = 8,158.61 × 3,554.08
4. Step 4: Simplify right side
   5,911.48x = 28,996,352.63
5. Step 5: Solve for x
   x = 28,996,352.63/5,911.48
6. Step 6: Final answer
   x = 4,905.09