Finding the Fourth Proportional to 9,972.09, 13,760.37 and 5,722.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,972.09 : 13,760.37 = 5,722.02 : x
2. Step 2: Convert to fraction form
   9,972.09/13,760.37 = 5,722.02/x
3. Step 3: Cross multiply
   9,972.09x = 13,760.37 × 5,722.02
4. Step 4: Simplify right side
   9,972.09x = 78,737,112.35
5. Step 5: Solve for x
   x = 78,737,112.35/9,972.09
6. Step 6: Final answer
   x = 7,895.75