Finding the Fourth Proportional to 42,737.40, 64,086.90 and 16,433.40

Step by Step Solution

1. Step 1: Write the proportion equation
   42,737.40 : 64,086.90 = 16,433.40 : x
2. Step 2: Convert to fraction form
   42,737.40/64,086.90 = 16,433.40/x
3. Step 3: Cross multiply
   42,737.40x = 64,086.90 × 16,433.40
4. Step 4: Simplify right side
   42,737.40x = 1,053,165,662.46
5. Step 5: Solve for x
   x = 1,053,165,662.46/42,737.40
6. Step 6: Final answer
   x = 24,642.72