Finding the Fourth Proportional to 7,196.88, 9,931.32 and 4,213.02

Step by Step Solution

1. Step 1: Write the proportion equation
   7,196.88 : 9,931.32 = 4,213.02 : x
2. Step 2: Convert to fraction form
   7,196.88/9,931.32 = 4,213.02/x
3. Step 3: Cross multiply
   7,196.88x = 9,931.32 × 4,213.02
4. Step 4: Simplify right side
   7,196.88x = 41,840,849.79
5. Step 5: Solve for x
   x = 41,840,849.79/7,196.88
6. Step 6: Final answer
   x = 5,813.75