Finding the Fourth Proportional to 119,496.31, 164,903.57 and 65,780.14

Step by Step Solution

1. Step 1: Write the proportion equation
   119,496.31 : 164,903.57 = 65,780.14 : x
2. Step 2: Convert to fraction form
   119,496.31/164,903.57 = 65,780.14/x
3. Step 3: Cross multiply
   119,496.31x = 164,903.57 × 65,780.14
4. Step 4: Simplify right side
   119,496.31x = 10,847,379,921.10
5. Step 5: Solve for x
   x = 10,847,379,921.10/119,496.31
6. Step 6: Final answer
   x = 90,775.86