Finding the Fourth Proportional to 42,998.82, 64,459.75 and 16,697.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,998.82 : 64,459.75 = 16,697.31 : x
2. Step 2: Convert to fraction form
   42,998.82/64,459.75 = 16,697.31/x
3. Step 3: Cross multiply
   42,998.82x = 64,459.75 × 16,697.31
4. Step 4: Simplify right side
   42,998.82x = 1,076,304,428.27
5. Step 5: Solve for x
   x = 1,076,304,428.27/42,998.82
6. Step 6: Final answer
   x = 25,031.02