Finding the Fourth Proportional to 42,762.69, 64,155.78 and 17,814.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,762.69 : 64,155.78 = 17,814.42 : x
2. Step 2: Convert to fraction form
   42,762.69/64,155.78 = 17,814.42/x
3. Step 3: Cross multiply
   42,762.69x = 64,155.78 × 17,814.42
4. Step 4: Simplify right side
   42,762.69x = 1,142,898,010.35
5. Step 5: Solve for x
   x = 1,142,898,010.35/42,762.69
6. Step 6: Final answer
   x = 26,726.52