Finding the Fourth Proportional to 11,939.37, 17,916.83 and 4,543.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,939.37 : 17,916.83 = 4,543.89 : x
2. Step 2: Convert to fraction form
   11,939.37/17,916.83 = 4,543.89/x
3. Step 3: Cross multiply
   11,939.37x = 17,916.83 × 4,543.89
4. Step 4: Simplify right side
   11,939.37x = 81,412,081.95
5. Step 5: Solve for x
   x = 81,412,081.95/11,939.37
6. Step 6: Final answer
   x = 6,818.79