Finding the Fourth Proportional to 14,665.56, 21,998.31 and 3,572.25

Step by Step Solution

1. Step 1: Write the proportion equation
   14,665.56 : 21,998.31 = 3,572.25 : x
2. Step 2: Convert to fraction form
   14,665.56/21,998.31 = 3,572.25/x
3. Step 3: Cross multiply
   14,665.56x = 21,998.31 × 3,572.25
4. Step 4: Simplify right side
   14,665.56x = 78,583,462.90
5. Step 5: Solve for x
   x = 78,583,462.90/14,665.56
6. Step 6: Final answer
   x = 5,358.37