Finding the Fourth Proportional to 107,499.38, 148,325.05 and 65,057

Step by Step Solution

1. Step 1: Write the proportion equation
   107,499.38 : 148,325.05 = 65,057 : x
2. Step 2: Convert to fraction form
   107,499.38/148,325.05 = 65,057/x
3. Step 3: Cross multiply
   107,499.38x = 148,325.05 × 65,057
4. Step 4: Simplify right side
   107,499.38x = 9,649,582,777.85
5. Step 5: Solve for x
   x = 9,649,582,777.85/107,499.38
6. Step 6: Final answer
   x = 89,764.08