Finding the Fourth Proportional to 21,118.42, 31,679.34 and 5,536

Step by Step Solution

1. Step 1: Write the proportion equation
   21,118.42 : 31,679.34 = 5,536 : x
2. Step 2: Convert to fraction form
   21,118.42/31,679.34 = 5,536/x
3. Step 3: Cross multiply
   21,118.42x = 31,679.34 × 5,536
4. Step 4: Simplify right side
   21,118.42x = 175,376,826.24
5. Step 5: Solve for x
   x = 175,376,826.24/21,118.42
6. Step 6: Final answer
   x = 8,304.45