Finding the Fourth Proportional to 7,287.29, 10,931.54 and 2,357.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,287.29 : 10,931.54 = 2,357.72 : x
2. Step 2: Convert to fraction form
   7,287.29/10,931.54 = 2,357.72/x
3. Step 3: Cross multiply
   7,287.29x = 10,931.54 × 2,357.72
4. Step 4: Simplify right side
   7,287.29x = 25,773,498.70
5. Step 5: Solve for x
   x = 25,773,498.70/7,287.29
6. Step 6: Final answer
   x = 3,536.77