Finding the Fourth Proportional to 6,892.21, 9,511.55 and 4,240.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,892.21 : 9,511.55 = 4,240.50 : x
2. Step 2: Convert to fraction form
   6,892.21/9,511.55 = 4,240.50/x
3. Step 3: Cross multiply
   6,892.21x = 9,511.55 × 4,240.50
4. Step 4: Simplify right side
   6,892.21x = 40,333,727.78
5. Step 5: Solve for x
   x = 40,333,727.78/6,892.21
6. Step 6: Final answer
   x = 5,852.07