Finding the Fourth Proportional to 119,613, 165,073.50 and 65,898.12

Step by Step Solution

1. Step 1: Write the proportion equation
   119,613 : 165,073.50 = 65,898.12 : x
2. Step 2: Convert to fraction form
   119,613/165,073.50 = 65,898.12/x
3. Step 3: Cross multiply
   119,613x = 165,073.50 × 65,898.12
4. Step 4: Simplify right side
   119,613x = 10,878,033,311.82
5. Step 5: Solve for x
   x = 10,878,033,311.82/119,613
6. Step 6: Final answer
   x = 90,943.57