Finding the Fourth Proportional to 9,955.98, 13,740.50 and 5,707.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,955.98 : 13,740.50 = 5,707.73 : x
2. Step 2: Convert to fraction form
   9,955.98/13,740.50 = 5,707.73/x
3. Step 3: Cross multiply
   9,955.98x = 13,740.50 × 5,707.73
4. Step 4: Simplify right side
   9,955.98x = 78,427,112.69
5. Step 5: Solve for x
   x = 78,427,112.69/9,955.98
6. Step 6: Final answer
   x = 7,877.39