Finding the Fourth Proportional to 7,125.83, 10,684.89 and 3,964.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,125.83 : 10,684.89 = 3,964.25 : x
2. Step 2: Convert to fraction form
   7,125.83/10,684.89 = 3,964.25/x
3. Step 3: Cross multiply
   7,125.83x = 10,684.89 × 3,964.25
4. Step 4: Simplify right side
   7,125.83x = 42,357,521.76
5. Step 5: Solve for x
   x = 42,357,521.76/7,125.83
6. Step 6: Final answer
   x = 5,944.23