Finding the Fourth Proportional to 5,277.32, 7,898.81 and 3,890.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,277.32 : 7,898.81 = 3,890.10 : x
2. Step 2: Convert to fraction form
   5,277.32/7,898.81 = 3,890.10/x
3. Step 3: Cross multiply
   5,277.32x = 7,898.81 × 3,890.10
4. Step 4: Simplify right side
   5,277.32x = 30,727,160.78
5. Step 5: Solve for x
   x = 30,727,160.78/5,277.32
6. Step 6: Final answer
   x = 5,822.49