Finding the Fourth Proportional to 67,128.69, 100,738.28 and 27,684.93

Step by Step Solution

1. Step 1: Write the proportion equation
   67,128.69 : 100,738.28 = 27,684.93 : x
2. Step 2: Convert to fraction form
   67,128.69/100,738.28 = 27,684.93/x
3. Step 3: Cross multiply
   67,128.69x = 100,738.28 × 27,684.93
4. Step 4: Simplify right side
   67,128.69x = 2,788,932,091.70
5. Step 5: Solve for x
   x = 2,788,932,091.70/67,128.69
6. Step 6: Final answer
   x = 41,546.05