Finding the Fourth Proportional to 107,144.07, 160,243.06 and 64,907.43

Step by Step Solution

1. Step 1: Write the proportion equation
   107,144.07 : 160,243.06 = 64,907.43 : x
2. Step 2: Convert to fraction form
   107,144.07/160,243.06 = 64,907.43/x
3. Step 3: Cross multiply
   107,144.07x = 160,243.06 × 64,907.43
4. Step 4: Simplify right side
   107,144.07x = 10,400,965,199.94
5. Step 5: Solve for x
   x = 10,400,965,199.94/107,144.07
6. Step 6: Final answer
   x = 97,074.58