Finding the Fourth Proportional to 65,018.89, 97,531.71 and 20,649.12

Step by Step Solution

1. Step 1: Write the proportion equation
   65,018.89 : 97,531.71 = 20,649.12 : x
2. Step 2: Convert to fraction form
   65,018.89/97,531.71 = 20,649.12/x
3. Step 3: Cross multiply
   65,018.89x = 97,531.71 × 20,649.12
4. Step 4: Simplify right side
   65,018.89x = 2,013,943,983.60
5. Step 5: Solve for x
   x = 2,013,943,983.60/65,018.89
6. Step 6: Final answer
   x = 30,974.75