Finding the Fourth Proportional to 9,923.82, 13,694.63 and 5,447.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,923.82 : 13,694.63 = 5,447.55 : x
2. Step 2: Convert to fraction form
   9,923.82/13,694.63 = 5,447.55/x
3. Step 3: Cross multiply
   9,923.82x = 13,694.63 × 5,447.55
4. Step 4: Simplify right side
   9,923.82x = 74,602,154.42
5. Step 5: Solve for x
   x = 74,602,154.42/9,923.82
6. Step 6: Final answer
   x = 7,517.48