Finding the Fourth Proportional to 9,057.05, 12,495.74 and 5,470.67

Step by Step Solution

1. Step 1: Write the proportion equation
   9,057.05 : 12,495.74 = 5,470.67 : x
2. Step 2: Convert to fraction form
   9,057.05/12,495.74 = 5,470.67/x
3. Step 3: Cross multiply
   9,057.05x = 12,495.74 × 5,470.67
4. Step 4: Simplify right side
   9,057.05x = 68,360,024.06
5. Step 5: Solve for x
   x = 68,360,024.06/9,057.05
6. Step 6: Final answer
   x = 7,547.72