Finding the Fourth Proportional to 205,061.40, 307,563.30 and 64,834.20

Step by Step Solution

1. Step 1: Write the proportion equation
   205,061.40 : 307,563.30 = 64,834.20 : x
2. Step 2: Convert to fraction form
   205,061.40/307,563.30 = 64,834.20/x
3. Step 3: Cross multiply
   205,061.40x = 307,563.30 × 64,834.20
4. Step 4: Simplify right side
   205,061.40x = 19,940,620,504.86
5. Step 5: Solve for x
   x = 19,940,620,504.86/205,061.40
6. Step 6: Final answer
   x = 97,242.19