Finding the Fourth Proportional to 9,937.48, 13,713.47 and 5,399.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,937.48 : 13,713.47 = 5,399.96 : x
2. Step 2: Convert to fraction form
   9,937.48/13,713.47 = 5,399.96/x
3. Step 3: Cross multiply
   9,937.48x = 13,713.47 × 5,399.96
4. Step 4: Simplify right side
   9,937.48x = 74,052,093.89
5. Step 5: Solve for x
   x = 74,052,093.89/9,937.48
6. Step 6: Final answer
   x = 7,451.80