Finding the Fourth Proportional to 103,192.37, 154,788.72 and 28,313.54

Step by Step Solution

1. Step 1: Write the proportion equation
   103,192.37 : 154,788.72 = 28,313.54 : x
2. Step 2: Convert to fraction form
   103,192.37/154,788.72 = 28,313.54/x
3. Step 3: Cross multiply
   103,192.37x = 154,788.72 × 28,313.54
4. Step 4: Simplify right side
   103,192.37x = 4,382,616,615.27
5. Step 5: Solve for x
   x = 4,382,616,615.27/103,192.37
6. Step 6: Final answer
   x = 42,470.36