Finding the Fourth Proportional to 9,922.12, 13,690.37 and 5,727.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,922.12 : 13,690.37 = 5,727.94 : x
2. Step 2: Convert to fraction form
   9,922.12/13,690.37 = 5,727.94/x
3. Step 3: Cross multiply
   9,922.12x = 13,690.37 × 5,727.94
4. Step 4: Simplify right side
   9,922.12x = 78,417,598.03
5. Step 5: Solve for x
   x = 78,417,598.03/9,922.12
6. Step 6: Final answer
   x = 7,903.31