Finding the Fourth Proportional to 3,920.01, 5,402.88 and 3,735.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920.01 : 5,402.88 = 3,735.47 : x
2. Step 2: Convert to fraction form
   3,920.01/5,402.88 = 3,735.47/x
3. Step 3: Cross multiply
   3,920.01x = 5,402.88 × 3,735.47
4. Step 4: Simplify right side
   3,920.01x = 20,182,269.14
5. Step 5: Solve for x
   x = 20,182,269.14/3,920.01
6. Step 6: Final answer
   x = 5,148.52