Finding the Fourth Proportional to 9,914.45, 13,681.92 and 5,722.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,914.45 : 13,681.92 = 5,722.70 : x
2. Step 2: Convert to fraction form
   9,914.45/13,681.92 = 5,722.70/x
3. Step 3: Cross multiply
   9,914.45x = 13,681.92 × 5,722.70
4. Step 4: Simplify right side
   9,914.45x = 78,297,523.58
5. Step 5: Solve for x
   x = 78,297,523.58/9,914.45
6. Step 6: Final answer
   x = 7,897.31