Finding the Fourth Proportional to 65,105.10, 97,663.05 and 20,730.60

Step by Step Solution

1. Step 1: Write the proportion equation
   65,105.10 : 97,663.05 = 20,730.60 : x
2. Step 2: Convert to fraction form
   65,105.10/97,663.05 = 20,730.60/x
3. Step 3: Cross multiply
   65,105.10x = 97,663.05 × 20,730.60
4. Step 4: Simplify right side
   65,105.10x = 2,024,613,624.33
5. Step 5: Solve for x
   x = 2,024,613,624.33/65,105.10
6. Step 6: Final answer
   x = 31,097.62