Finding the Fourth Proportional to 49,285.76, 73,920.72 and 13,748

Step by Step Solution

1. Step 1: Write the proportion equation
   49,285.76 : 73,920.72 = 13,748 : x
2. Step 2: Convert to fraction form
   49,285.76/73,920.72 = 13,748/x
3. Step 3: Cross multiply
   49,285.76x = 73,920.72 × 13,748
4. Step 4: Simplify right side
   49,285.76x = 1,016,262,058.56
5. Step 5: Solve for x
   x = 1,016,262,058.56/49,285.76
6. Step 6: Final answer
   x = 20,619.79