Finding the Fourth Proportional to 112,379.88, 168,568.62 and 64,964.79

Step by Step Solution

1. Step 1: Write the proportion equation
   112,379.88 : 168,568.62 = 64,964.79 : x
2. Step 2: Convert to fraction form
   112,379.88/168,568.62 = 64,964.79/x
3. Step 3: Cross multiply
   112,379.88x = 168,568.62 × 64,964.79
4. Step 4: Simplify right side
   112,379.88x = 10,951,024,998.89
5. Step 5: Solve for x
   x = 10,951,024,998.89/112,379.88
6. Step 6: Final answer
   x = 97,446.49