Finding the Fourth Proportional to 119,121, 164,385.82 and 65,405.54

Step by Step Solution

1. Step 1: Write the proportion equation
   119,121 : 164,385.82 = 65,405.54 : x
2. Step 2: Convert to fraction form
   119,121/164,385.82 = 65,405.54/x
3. Step 3: Cross multiply
   119,121x = 164,385.82 × 65,405.54
4. Step 4: Simplify right side
   119,121x = 10,751,743,325.44
5. Step 5: Solve for x
   x = 10,751,743,325.44/119,121
6. Step 6: Final answer
   x = 90,259.01