Finding the Fourth Proportional to 11,773.52, 17,661.92 and 3,980.24

Step by Step Solution

1. Step 1: Write the proportion equation
   11,773.52 : 17,661.92 = 3,980.24 : x
2. Step 2: Convert to fraction form
   11,773.52/17,661.92 = 3,980.24/x
3. Step 3: Cross multiply
   11,773.52x = 17,661.92 × 3,980.24
4. Step 4: Simplify right side
   11,773.52x = 70,298,680.46
5. Step 5: Solve for x
   x = 70,298,680.46/11,773.52
6. Step 6: Final answer
   x = 5,970.91