Finding the Fourth Proportional to 3,870.02, 5,825.95 and 3,525.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.02 : 5,825.95 = 3,525.57 : x
2. Step 2: Convert to fraction form
   3,870.02/5,825.95 = 3,525.57/x
3. Step 3: Cross multiply
   3,870.02x = 5,825.95 × 3,525.57
4. Step 4: Simplify right side
   3,870.02x = 20,539,788.79
5. Step 5: Solve for x
   x = 20,539,788.79/3,870.02
6. Step 6: Final answer
   x = 5,307.41