Finding the Fourth Proportional to 9,256.10, 12,775.42 and 5,898.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,256.10 : 12,775.42 = 5,898.12 : x
2. Step 2: Convert to fraction form
   9,256.10/12,775.42 = 5,898.12/x
3. Step 3: Cross multiply
   9,256.10x = 12,775.42 × 5,898.12
4. Step 4: Simplify right side
   9,256.10x = 75,350,960.21
5. Step 5: Solve for x
   x = 75,350,960.21/9,256.10
6. Step 6: Final answer
   x = 8,140.68