Finding the Fourth Proportional to 119,119.75, 164,384.10 and 65,404.28

Step by Step Solution

1. Step 1: Write the proportion equation
   119,119.75 : 164,384.10 = 65,404.28 : x
2. Step 2: Convert to fraction form
   119,119.75/164,384.10 = 65,404.28/x
3. Step 3: Cross multiply
   119,119.75x = 164,384.10 × 65,404.28
4. Step 4: Simplify right side
   119,119.75x = 10,751,424,114.91
5. Step 5: Solve for x
   x = 10,751,424,114.91/119,119.75
6. Step 6: Final answer
   x = 90,257.28