Finding the Fourth Proportional to 107,187.92, 147,923.72 and 64,738.16

Step by Step Solution

1. Step 1: Write the proportion equation
   107,187.92 : 147,923.72 = 64,738.16 : x
2. Step 2: Convert to fraction form
   107,187.92/147,923.72 = 64,738.16/x
3. Step 3: Cross multiply
   107,187.92x = 147,923.72 × 64,738.16
4. Step 4: Simplify right side
   107,187.92x = 9,576,309,453.16
5. Step 5: Solve for x
   x = 9,576,309,453.16/107,187.92
6. Step 6: Final answer
   x = 89,341.31