Finding the Fourth Proportional to 9,722.68, 13,416.42 and 5,530.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,722.68 : 13,416.42 = 5,530.12 : x
2. Step 2: Convert to fraction form
   9,722.68/13,416.42 = 5,530.12/x
3. Step 3: Cross multiply
   9,722.68x = 13,416.42 × 5,530.12
4. Step 4: Simplify right side
   9,722.68x = 74,194,412.57
5. Step 5: Solve for x
   x = 74,194,412.57/9,722.68
6. Step 6: Final answer
   x = 7,631.07