Finding the Fourth Proportional to 65,017.89, 97,530.21 and 20,648.12

Step by Step Solution

1. Step 1: Write the proportion equation
   65,017.89 : 97,530.21 = 20,648.12 : x
2. Step 2: Convert to fraction form
   65,017.89/97,530.21 = 20,648.12/x
3. Step 3: Cross multiply
   65,017.89x = 97,530.21 × 20,648.12
4. Step 4: Simplify right side
   65,017.89x = 2,013,814,992.05
5. Step 5: Solve for x
   x = 2,013,814,992.05/65,017.89
6. Step 6: Final answer
   x = 30,973.24