Finding the Fourth Proportional to 21,179.34, 31,766.58 and 5,598.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,179.34 : 31,766.58 = 5,598.18 : x
2. Step 2: Convert to fraction form
   21,179.34/31,766.58 = 5,598.18/x
3. Step 3: Cross multiply
   21,179.34x = 31,766.58 × 5,598.18
4. Step 4: Simplify right side
   21,179.34x = 177,835,032.82
5. Step 5: Solve for x
   x = 177,835,032.82/21,179.34
6. Step 6: Final answer
   x = 8,396.63