Finding the Fourth Proportional to 3,935.76, 5,870.36 and 3,707.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,935.76 : 5,870.36 = 3,707.32 : x
2. Step 2: Convert to fraction form
   3,935.76/5,870.36 = 3,707.32/x
3. Step 3: Cross multiply
   3,935.76x = 5,870.36 × 3,707.32
4. Step 4: Simplify right side
   3,935.76x = 21,763,303.04
5. Step 5: Solve for x
   x = 21,763,303.04/3,935.76
6. Step 6: Final answer
   x = 5,529.63