Finding the Fourth Proportional to 19,705.71, 29,562.78 and 5,665.62

Step by Step Solution

1. Step 1: Write the proportion equation
   19,705.71 : 29,562.78 = 5,665.62 : x
2. Step 2: Convert to fraction form
   19,705.71/29,562.78 = 5,665.62/x
3. Step 3: Cross multiply
   19,705.71x = 29,562.78 × 5,665.62
4. Step 4: Simplify right side
   19,705.71x = 167,491,477.62
5. Step 5: Solve for x
   x = 167,491,477.62/19,705.71
6. Step 6: Final answer
   x = 8,499.64