Finding the Fourth Proportional to 11,809.71, 17,714.16 and 4,411.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,809.71 : 17,714.16 = 4,411.98 : x
2. Step 2: Convert to fraction form
   11,809.71/17,714.16 = 4,411.98/x
3. Step 3: Cross multiply
   11,809.71x = 17,714.16 × 4,411.98
4. Step 4: Simplify right side
   11,809.71x = 78,154,519.64
5. Step 5: Solve for x
   x = 78,154,519.64/11,809.71
6. Step 6: Final answer
   x = 6,617.82