Finding the Fourth Proportional to 9,975.97, 13,766.61 and 5,499.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,975.97 : 13,766.61 = 5,499.58 : x
2. Step 2: Convert to fraction form
   9,975.97/13,766.61 = 5,499.58/x
3. Step 3: Cross multiply
   9,975.97x = 13,766.61 × 5,499.58
4. Step 4: Simplify right side
   9,975.97x = 75,710,573.02
5. Step 5: Solve for x
   x = 75,710,573.02/9,975.97
6. Step 6: Final answer
   x = 7,589.29