Finding the Fourth Proportional to 11,470.86, 17,206.56 and 3,679.74

Step by Step Solution

1. Step 1: Write the proportion equation
   11,470.86 : 17,206.56 = 3,679.74 : x
2. Step 2: Convert to fraction form
   11,470.86/17,206.56 = 3,679.74/x
3. Step 3: Cross multiply
   11,470.86x = 17,206.56 × 3,679.74
4. Step 4: Simplify right side
   11,470.86x = 63,315,667.09
5. Step 5: Solve for x
   x = 63,315,667.09/11,470.86
6. Step 6: Final answer
   x = 5,519.70