Finding the Fourth Proportional to 6,901.57, 9,524.28 and 3,917.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,901.57 : 9,524.28 = 3,917.50 : x
2. Step 2: Convert to fraction form
   6,901.57/9,524.28 = 3,917.50/x
3. Step 3: Cross multiply
   6,901.57x = 9,524.28 × 3,917.50
4. Step 4: Simplify right side
   6,901.57x = 37,311,357.78
5. Step 5: Solve for x
   x = 37,311,357.78/6,901.57
6. Step 6: Final answer
   x = 5,406.21