Finding the Fourth Proportional to 14,665.73, 21,998.61 and 3,572.42

Step by Step Solution

1. Step 1: Write the proportion equation
   14,665.73 : 21,998.61 = 3,572.42 : x
2. Step 2: Convert to fraction form
   14,665.73/21,998.61 = 3,572.42/x
3. Step 3: Cross multiply
   14,665.73x = 21,998.61 × 3,572.42
4. Step 4: Simplify right side
   14,665.73x = 78,588,164.34
5. Step 5: Solve for x
   x = 78,588,164.34/14,665.73
6. Step 6: Final answer
   x = 5,358.63