Finding the Fourth Proportional to 42,738.87, 64,111.04 and 16,443.62

Step by Step Solution

1. Step 1: Write the proportion equation
   42,738.87 : 64,111.04 = 16,443.62 : x
2. Step 2: Convert to fraction form
   42,738.87/64,111.04 = 16,443.62/x
3. Step 3: Cross multiply
   42,738.87x = 64,111.04 × 16,443.62
4. Step 4: Simplify right side
   42,738.87x = 1,054,217,579.56
5. Step 5: Solve for x
   x = 1,054,217,579.56/42,738.87
6. Step 6: Final answer
   x = 24,666.48