Finding the Fourth Proportional to 11,991.43, 17,980.71 and 4,594.33

Step by Step Solution

1. Step 1: Write the proportion equation
   11,991.43 : 17,980.71 = 4,594.33 : x
2. Step 2: Convert to fraction form
   11,991.43/17,980.71 = 4,594.33/x
3. Step 3: Cross multiply
   11,991.43x = 17,980.71 × 4,594.33
4. Step 4: Simplify right side
   11,991.43x = 82,609,315.37
5. Step 5: Solve for x
   x = 82,609,315.37/11,991.43
6. Step 6: Final answer
   x = 6,889.03