Finding the Fourth Proportional to 9,969.86, 13,759.01 and 5,493.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,969.86 : 13,759.01 = 5,493.61 : x
2. Step 2: Convert to fraction form
   9,969.86/13,759.01 = 5,493.61/x
3. Step 3: Cross multiply
   9,969.86x = 13,759.01 × 5,493.61
4. Step 4: Simplify right side
   9,969.86x = 75,586,637.46
5. Step 5: Solve for x
   x = 75,586,637.46/9,969.86
6. Step 6: Final answer
   x = 7,581.51