Finding the Fourth Proportional to 7,196.42, 9,931.21 and 4,009.55

Step by Step Solution

1. Step 1: Write the proportion equation
   7,196.42 : 9,931.21 = 4,009.55 : x
2. Step 2: Convert to fraction form
   7,196.42/9,931.21 = 4,009.55/x
3. Step 3: Cross multiply
   7,196.42x = 9,931.21 × 4,009.55
4. Step 4: Simplify right side
   7,196.42x = 39,819,623.38
5. Step 5: Solve for x
   x = 39,819,623.38/7,196.42
6. Step 6: Final answer
   x = 5,533.25