Finding the Fourth Proportional to 21,181.34, 31,769.58 and 5,600.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,181.34 : 31,769.58 = 5,600.18 : x
2. Step 2: Convert to fraction form
   21,181.34/31,769.58 = 5,600.18/x
3. Step 3: Cross multiply
   21,181.34x = 31,769.58 × 5,600.18
4. Step 4: Simplify right side
   21,181.34x = 177,915,366.52
5. Step 5: Solve for x
   x = 177,915,366.52/21,181.34
6. Step 6: Final answer
   x = 8,399.63