Finding the Fourth Proportional to 119,680.79, 165,156.57 and 65,964.63

Step by Step Solution

1. Step 1: Write the proportion equation
   119,680.79 : 165,156.57 = 65,964.63 : x
2. Step 2: Convert to fraction form
   119,680.79/165,156.57 = 65,964.63/x
3. Step 3: Cross multiply
   119,680.79x = 165,156.57 × 65,964.63
4. Step 4: Simplify right side
   119,680.79x = 10,894,491,722.45
5. Step 5: Solve for x
   x = 10,894,491,722.45/119,680.79
6. Step 6: Final answer
   x = 91,029.58