Finding the Fourth Proportional to 107,222.40, 160,819.94 and 28,342.78

Step by Step Solution

1. Step 1: Write the proportion equation
   107,222.40 : 160,819.94 = 28,342.78 : x
2. Step 2: Convert to fraction form
   107,222.40/160,819.94 = 28,342.78/x
3. Step 3: Cross multiply
   107,222.40x = 160,819.94 × 28,342.78
4. Step 4: Simplify right side
   107,222.40x = 4,558,084,179.03
5. Step 5: Solve for x
   x = 4,558,084,179.03/107,222.40
6. Step 6: Final answer
   x = 42,510.56