Finding the Fourth Proportional to 119,216.56, 164,591.10 and 78,964.82

Step by Step Solution

1. Step 1: Write the proportion equation
   119,216.56 : 164,591.10 = 78,964.82 : x
2. Step 2: Convert to fraction form
   119,216.56/164,591.10 = 78,964.82/x
3. Step 3: Cross multiply
   119,216.56x = 164,591.10 × 78,964.82
4. Step 4: Simplify right side
   119,216.56x = 12,996,906,585.10
5. Step 5: Solve for x
   x = 12,996,906,585.10/119,216.56
6. Step 6: Final answer
   x = 109,019.31