Finding the Fourth Proportional to 107,245.83, 148,003.20 and 64,796.16

Step by Step Solution

1. Step 1: Write the proportion equation
   107,245.83 : 148,003.20 = 64,796.16 : x
2. Step 2: Convert to fraction form
   107,245.83/148,003.20 = 64,796.16/x
3. Step 3: Cross multiply
   107,245.83x = 148,003.20 × 64,796.16
4. Step 4: Simplify right side
   107,245.83x = 9,590,039,027.71
5. Step 5: Solve for x
   x = 9,590,039,027.71/107,245.83
6. Step 6: Final answer
   x = 89,421.09