Finding the Fourth Proportional to 11,772.27, 17,657.86 and 3,981.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,772.27 : 17,657.86 = 3,981.15 : x
2. Step 2: Convert to fraction form
   11,772.27/17,657.86 = 3,981.15/x
3. Step 3: Cross multiply
   11,772.27x = 17,657.86 × 3,981.15
4. Step 4: Simplify right side
   11,772.27x = 70,298,589.34
5. Step 5: Solve for x
   x = 70,298,589.34/11,772.27
6. Step 6: Final answer
   x = 5,971.54