Finding the Fourth Proportional to 3,957.77, 5,931.18 and 3,436.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,957.77 : 5,931.18 = 3,436.53 : x
2. Step 2: Convert to fraction form
   3,957.77/5,931.18 = 3,436.53/x
3. Step 3: Cross multiply
   3,957.77x = 5,931.18 × 3,436.53
4. Step 4: Simplify right side
   3,957.77x = 20,382,678.01
5. Step 5: Solve for x
   x = 20,382,678.01/3,957.77
6. Step 6: Final answer
   x = 5,150.05