Finding the Fourth Proportional to 11,845.98, 17,763.03 and 3,945.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,845.98 : 17,763.03 = 3,945.72 : x
2. Step 2: Convert to fraction form
   11,845.98/17,763.03 = 3,945.72/x
3. Step 3: Cross multiply
   11,845.98x = 17,763.03 × 3,945.72
4. Step 4: Simplify right side
   11,845.98x = 70,087,942.73
5. Step 5: Solve for x
   x = 70,087,942.73/11,845.98
6. Step 6: Final answer
   x = 5,916.60