Finding the Fourth Proportional to 3,700.32, 5,101.83 and 3,109.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,700.32 : 5,101.83 = 3,109.56 : x
2. Step 2: Convert to fraction form
   3,700.32/5,101.83 = 3,109.56/x
3. Step 3: Cross multiply
   3,700.32x = 5,101.83 × 3,109.56
4. Step 4: Simplify right side
   3,700.32x = 15,864,446.49
5. Step 5: Solve for x
   x = 15,864,446.49/3,700.32
6. Step 6: Final answer
   x = 4,287.32