Finding the Fourth Proportional to 42,975.45, 64,462.82 and 16,698.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42,975.45 : 64,462.82 = 16,698.69 : x
2. Step 2: Convert to fraction form
   42,975.45/64,462.82 = 16,698.69/x
3. Step 3: Cross multiply
   42,975.45x = 64,462.82 × 16,698.69
4. Step 4: Simplify right side
   42,975.45x = 1,076,444,564.21
5. Step 5: Solve for x
   x = 1,076,444,564.21/42,975.45
6. Step 6: Final answer
   x = 25,047.90