Finding the Fourth Proportional to 106,744.65, 160,144.72 and 31,864.81

Step by Step Solution

1. Step 1: Write the proportion equation
   106,744.65 : 160,144.72 = 31,864.81 : x
2. Step 2: Convert to fraction form
   106,744.65/160,144.72 = 31,864.81/x
3. Step 3: Cross multiply
   106,744.65x = 160,144.72 × 31,864.81
4. Step 4: Simplify right side
   106,744.65x = 5,102,980,895.55
5. Step 5: Solve for x
   x = 5,102,980,895.55/106,744.65
6. Step 6: Final answer
   x = 47,805.49