Finding the Fourth Proportional to 119,678.45, 165,156.77 and 65,962.31

Step by Step Solution

1. Step 1: Write the proportion equation
   119,678.45 : 165,156.77 = 65,962.31 : x
2. Step 2: Convert to fraction form
   119,678.45/165,156.77 = 65,962.31/x
3. Step 3: Cross multiply
   119,678.45x = 165,156.77 × 65,962.31
4. Step 4: Simplify right side
   119,678.45x = 10,894,122,561.72
5. Step 5: Solve for x
   x = 10,894,122,561.72/119,678.45
6. Step 6: Final answer
   x = 91,028.27