Finding the Fourth Proportional to 21,211.34, 31,814.58 and 5,630.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,211.34 : 31,814.58 = 5,630.18 : x
2. Step 2: Convert to fraction form
   21,211.34/31,814.58 = 5,630.18/x
3. Step 3: Cross multiply
   21,211.34x = 31,814.58 × 5,630.18
4. Step 4: Simplify right side
   21,211.34x = 179,121,812.02
5. Step 5: Solve for x
   x = 179,121,812.02/21,211.34
6. Step 6: Final answer
   x = 8,444.62