Finding the Fourth Proportional to 5,279.32, 7,901.81 and 3,892.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,279.32 : 7,901.81 = 3,892.10 : x
2. Step 2: Convert to fraction form
   5,279.32/7,901.81 = 3,892.10/x
3. Step 3: Cross multiply
   5,279.32x = 7,901.81 × 3,892.10
4. Step 4: Simplify right side
   5,279.32x = 30,754,634.70
5. Step 5: Solve for x
   x = 30,754,634.70/5,279.32
6. Step 6: Final answer
   x = 5,825.49