Finding the Fourth Proportional to 110,668.05, 152,735.63 and 67,638.69

Step by Step Solution

1. Step 1: Write the proportion equation
   110,668.05 : 152,735.63 = 67,638.69 : x
2. Step 2: Convert to fraction form
   110,668.05/152,735.63 = 67,638.69/x
3. Step 3: Cross multiply
   110,668.05x = 152,735.63 × 67,638.69
4. Step 4: Simplify right side
   110,668.05x = 10,330,837,591.33
5. Step 5: Solve for x
   x = 10,330,837,591.33/110,668.05
6. Step 6: Final answer
   x = 93,349.78