Finding the Fourth Proportional to 42,989.03, 64,494.72 and 16,335.53

Step by Step Solution

1. Step 1: Write the proportion equation
   42,989.03 : 64,494.72 = 16,335.53 : x
2. Step 2: Convert to fraction form
   42,989.03/64,494.72 = 16,335.53/x
3. Step 3: Cross multiply
   42,989.03x = 64,494.72 × 16,335.53
4. Step 4: Simplify right side
   42,989.03x = 1,053,555,433.40
5. Step 5: Solve for x
   x = 1,053,555,433.40/42,989.03
6. Step 6: Final answer
   x = 24,507.54