Finding the Fourth Proportional to 42,775.80, 64,118.34 and 16,469.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,775.80 : 64,118.34 = 16,469.16 : x
2. Step 2: Convert to fraction form
   42,775.80/64,118.34 = 16,469.16/x
3. Step 3: Cross multiply
   42,775.80x = 64,118.34 × 16,469.16
4. Step 4: Simplify right side
   42,775.80x = 1,055,975,200.39
5. Step 5: Solve for x
   x = 1,055,975,200.39/42,775.80
6. Step 6: Final answer
   x = 24,686.28