Finding the Fourth Proportional to 5,314.46, 7,931.50 and 5,176.22

Step by Step Solution

1. Step 1: Write the proportion equation
   5,314.46 : 7,931.50 = 5,176.22 : x
2. Step 2: Convert to fraction form
   5,314.46/7,931.50 = 5,176.22/x
3. Step 3: Cross multiply
   5,314.46x = 7,931.50 × 5,176.22
4. Step 4: Simplify right side
   5,314.46x = 41,055,188.93
5. Step 5: Solve for x
   x = 41,055,188.93/5,314.46
6. Step 6: Final answer
   x = 7,725.19