Finding the Fourth Proportional to 11,773.56, 17,662.14 and 3,981.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,773.56 : 17,662.14 = 3,981.78 : x
2. Step 2: Convert to fraction form
   11,773.56/17,662.14 = 3,981.78/x
3. Step 3: Cross multiply
   11,773.56x = 17,662.14 × 3,981.78
4. Step 4: Simplify right side
   11,773.56x = 70,326,755.81
5. Step 5: Solve for x
   x = 70,326,755.81/11,773.56
6. Step 6: Final answer
   x = 5,973.28