Finding the Fourth Proportional to 11,980.69, 17,976.61 and 4,582.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,980.69 : 17,976.61 = 4,582.71 : x
2. Step 2: Convert to fraction form
   11,980.69/17,976.61 = 4,582.71/x
3. Step 3: Cross multiply
   11,980.69x = 17,976.61 × 4,582.71
4. Step 4: Simplify right side
   11,980.69x = 82,381,590.41
5. Step 5: Solve for x
   x = 82,381,590.41/11,980.69
6. Step 6: Final answer
   x = 6,876.20