Finding the Fourth Proportional to 119,112.45, 164,375.46 and 65,400.91

Step by Step Solution

1. Step 1: Write the proportion equation
   119,112.45 : 164,375.46 = 65,400.91 : x
2. Step 2: Convert to fraction form
   119,112.45/164,375.46 = 65,400.91/x
3. Step 3: Cross multiply
   119,112.45x = 164,375.46 × 65,400.91
4. Step 4: Simplify right side
   119,112.45x = 10,750,304,665.67
5. Step 5: Solve for x
   x = 10,750,304,665.67/119,112.45
6. Step 6: Final answer
   x = 90,253.41