Finding the Fourth Proportional to 108,018.70, 149,145.51 and 65,634.10

Step by Step Solution

1. Step 1: Write the proportion equation
   108,018.70 : 149,145.51 = 65,634.10 : x
2. Step 2: Convert to fraction form
   108,018.70/149,145.51 = 65,634.10/x
3. Step 3: Cross multiply
   108,018.70x = 149,145.51 × 65,634.10
4. Step 4: Simplify right side
   108,018.70x = 9,789,031,317.89
5. Step 5: Solve for x
   x = 9,789,031,317.89/108,018.70
6. Step 6: Final answer
   x = 90,623.49