Finding the Fourth Proportional to 21,251.34, 31,874.58 and 5,670.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,251.34 : 31,874.58 = 5,670.18 : x
2. Step 2: Convert to fraction form
   21,251.34/31,874.58 = 5,670.18/x
3. Step 3: Cross multiply
   21,251.34x = 31,874.58 × 5,670.18
4. Step 4: Simplify right side
   21,251.34x = 180,734,606.02
5. Step 5: Solve for x
   x = 180,734,606.02/21,251.34
6. Step 6: Final answer
   x = 8,504.62