Finding the Fourth Proportional to 42,752.57, 64,131.62 and 16,457.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,752.57 : 64,131.62 = 16,457.31 : x
2. Step 2: Convert to fraction form
   42,752.57/64,131.62 = 16,457.31/x
3. Step 3: Cross multiply
   42,752.57x = 64,131.62 × 16,457.31
4. Step 4: Simplify right side
   42,752.57x = 1,055,433,868.86
5. Step 5: Solve for x
   x = 1,055,433,868.86/42,752.57
6. Step 6: Final answer
   x = 24,687.03