Finding the Fourth Proportional to 42,984.95, 64,494.43 and 16,697.21

Step by Step Solution

1. Step 1: Write the proportion equation
   42,984.95 : 64,494.43 = 16,697.21 : x
2. Step 2: Convert to fraction form
   42,984.95/64,494.43 = 16,697.21/x
3. Step 3: Cross multiply
   42,984.95x = 64,494.43 × 16,697.21
4. Step 4: Simplify right side
   42,984.95x = 1,076,876,677.33
5. Step 5: Solve for x
   x = 1,076,876,677.33/42,984.95
6. Step 6: Final answer
   x = 25,052.41