Finding the Fourth Proportional to 12,869.93, 19,298.72 and 5,470.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,869.93 : 19,298.72 = 5,470.38 : x
2. Step 2: Convert to fraction form
   12,869.93/19,298.72 = 5,470.38/x
3. Step 3: Cross multiply
   12,869.93x = 19,298.72 × 5,470.38
4. Step 4: Simplify right side
   12,869.93x = 105,571,304.56
5. Step 5: Solve for x
   x = 105,571,304.56/12,869.93
6. Step 6: Final answer
   x = 8,202.94