Finding the Fourth Proportional to 119,158.89, 164,440.40 and 65,445

Step by Step Solution

1. Step 1: Write the proportion equation
   119,158.89 : 164,440.40 = 65,445 : x
2. Step 2: Convert to fraction form
   119,158.89/164,440.40 = 65,445/x
3. Step 3: Cross multiply
   119,158.89x = 164,440.40 × 65,445
4. Step 4: Simplify right side
   119,158.89x = 10,761,801,650.78
5. Step 5: Solve for x
   x = 10,761,801,650.78/119,158.89
6. Step 6: Final answer
   x = 90,314.72