Finding the Fourth Proportional to 119,155.95, 164,436.39 and 65,442.11

Step by Step Solution

1. Step 1: Write the proportion equation
   119,155.95 : 164,436.39 = 65,442.11 : x
2. Step 2: Convert to fraction form
   119,155.95/164,436.39 = 65,442.11/x
3. Step 3: Cross multiply
   119,155.95x = 164,436.39 × 65,442.11
4. Step 4: Simplify right side
   119,155.95x = 10,761,063,500.20
5. Step 5: Solve for x
   x = 10,761,063,500.20/119,155.95
6. Step 6: Final answer
   x = 90,310.75