Finding the Fourth Proportional to 9,969.31, 13,757.85 and 5,493.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,969.31 : 13,757.85 = 5,493.25 : x
2. Step 2: Convert to fraction form
   9,969.31/13,757.85 = 5,493.25/x
3. Step 3: Cross multiply
   9,969.31x = 13,757.85 × 5,493.25
4. Step 4: Simplify right side
   9,969.31x = 75,575,309.51
5. Step 5: Solve for x
   x = 75,575,309.51/9,969.31
6. Step 6: Final answer
   x = 7,580.80