Finding the Fourth Proportional to 42,681.49, 64,030.47 and 16,384.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,681.49 : 64,030.47 = 16,384.18 : x
2. Step 2: Convert to fraction form
   42,681.49/64,030.47 = 16,384.18/x
3. Step 3: Cross multiply
   42,681.49x = 64,030.47 × 16,384.18
4. Step 4: Simplify right side
   42,681.49x = 1,049,086,745.96
5. Step 5: Solve for x
   x = 1,049,086,745.96/42,681.49
6. Step 6: Final answer
   x = 24,579.43