Finding the Fourth Proportional to 6,921.31, 9,549.94 and 4,402.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,921.31 : 9,549.94 = 4,402.50 : x
2. Step 2: Convert to fraction form
   6,921.31/9,549.94 = 4,402.50/x
3. Step 3: Cross multiply
   6,921.31x = 9,549.94 × 4,402.50
4. Step 4: Simplify right side
   6,921.31x = 42,043,610.85
5. Step 5: Solve for x
   x = 42,043,610.85/6,921.31
6. Step 6: Final answer
   x = 6,074.52