Finding the Fourth Proportional to 11,809.58, 17,711.52 and 3,487.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,809.58 : 17,711.52 = 3,487.34 : x
2. Step 2: Convert to fraction form
   11,809.58/17,711.52 = 3,487.34/x
3. Step 3: Cross multiply
   11,809.58x = 17,711.52 × 3,487.34
4. Step 4: Simplify right side
   11,809.58x = 61,766,092.16
5. Step 5: Solve for x
   x = 61,766,092.16/11,809.58
6. Step 6: Final answer
   x = 5,230.17