Finding the Fourth Proportional to 5,470.74, 7,549.81 and 3,112.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,470.74 : 7,549.81 = 3,112.83 : x
2. Step 2: Convert to fraction form
   5,470.74/7,549.81 = 3,112.83/x
3. Step 3: Cross multiply
   5,470.74x = 7,549.81 × 3,112.83
4. Step 4: Simplify right side
   5,470.74x = 23,501,267.28
5. Step 5: Solve for x
   x = 23,501,267.28/5,470.74
6. Step 6: Final answer
   x = 4,295.81