Finding the Fourth Proportional to 119,105.28, 164,365.57 and 65,393.76

Step by Step Solution

1. Step 1: Write the proportion equation
   119,105.28 : 164,365.57 = 65,393.76 : x
2. Step 2: Convert to fraction form
   119,105.28/164,365.57 = 65,393.76/x
3. Step 3: Cross multiply
   119,105.28x = 164,365.57 × 65,393.76
4. Step 4: Simplify right side
   119,105.28x = 10,748,483,334.96
5. Step 5: Solve for x
   x = 10,748,483,334.96/119,105.28
6. Step 6: Final answer
   x = 90,243.55