Finding the Fourth Proportional to 9,975.68, 13,766.54 and 5,499.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,975.68 : 13,766.54 = 5,499.59 : x
2. Step 2: Convert to fraction form
   9,975.68/13,766.54 = 5,499.59/x
3. Step 3: Cross multiply
   9,975.68x = 13,766.54 × 5,499.59
4. Step 4: Simplify right side
   9,975.68x = 75,710,332.64
5. Step 5: Solve for x
   x = 75,710,332.64/9,975.68
6. Step 6: Final answer
   x = 7,589.49