Finding the Fourth Proportional to 7,293.42, 10,071.27 and 5,718.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,293.42 : 10,071.27 = 5,718.78 : x
2. Step 2: Convert to fraction form
   7,293.42/10,071.27 = 5,718.78/x
3. Step 3: Cross multiply
   7,293.42x = 10,071.27 × 5,718.78
4. Step 4: Simplify right side
   7,293.42x = 57,595,377.45
5. Step 5: Solve for x
   x = 57,595,377.45/7,293.42
6. Step 6: Final answer
   x = 7,896.90