Finding the Fourth Proportional to 13,470.42, 20,204.07 and 5,150.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,470.42 : 20,204.07 = 5,150.25 : x
2. Step 2: Convert to fraction form
   13,470.42/20,204.07 = 5,150.25/x
3. Step 3: Cross multiply
   13,470.42x = 20,204.07 × 5,150.25
4. Step 4: Simplify right side
   13,470.42x = 104,056,011.52
5. Step 5: Solve for x
   x = 104,056,011.52/13,470.42
6. Step 6: Final answer
   x = 7,724.78