Finding the Fourth Proportional to 7,931.40, 10,949.82 and 5,417.16

Step by Step Solution

1. Step 1: Write the proportion equation
   7,931.40 : 10,949.82 = 5,417.16 : x
2. Step 2: Convert to fraction form
   7,931.40/10,949.82 = 5,417.16/x
3. Step 3: Cross multiply
   7,931.40x = 10,949.82 × 5,417.16
4. Step 4: Simplify right side
   7,931.40x = 59,316,926.91
5. Step 5: Solve for x
   x = 59,316,926.91/7,931.40
6. Step 6: Final answer
   x = 7,478.75