Finding the Fourth Proportional to 43,016.49, 64,499.63 and 16,690.49

Step by Step Solution

1. Step 1: Write the proportion equation
   43,016.49 : 64,499.63 = 16,690.49 : x
2. Step 2: Convert to fraction form
   43,016.49/64,499.63 = 16,690.49/x
3. Step 3: Cross multiply
   43,016.49x = 64,499.63 × 16,690.49
4. Step 4: Simplify right side
   43,016.49x = 1,076,530,023.57
5. Step 5: Solve for x
   x = 1,076,530,023.57/43,016.49
6. Step 6: Final answer
   x = 25,025.98