Finding the Fourth Proportional to 21,961.56, 30,241.98 and 21,501.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,961.56 : 30,241.98 = 21,501.48 : x
2. Step 2: Convert to fraction form
   21,961.56/30,241.98 = 21,501.48/x
3. Step 3: Cross multiply
   21,961.56x = 30,241.98 × 21,501.48
4. Step 4: Simplify right side
   21,961.56x = 650,247,328.13
5. Step 5: Solve for x
   x = 650,247,328.13/21,961.56
6. Step 6: Final answer
   x = 29,608.43