Finding the Fourth Proportional to 9,506.85, 13,122.72 and 5,529.21

Step by Step Solution

1. Step 1: Write the proportion equation
   9,506.85 : 13,122.72 = 5,529.21 : x
2. Step 2: Convert to fraction form
   9,506.85/13,122.72 = 5,529.21/x
3. Step 3: Cross multiply
   9,506.85x = 13,122.72 × 5,529.21
4. Step 4: Simplify right side
   9,506.85x = 72,558,274.65
5. Step 5: Solve for x
   x = 72,558,274.65/9,506.85
6. Step 6: Final answer
   x = 7,632.21