Finding the Fourth Proportional to 42,772.59, 64,124.22 and 17,831.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,772.59 : 64,124.22 = 17,831.34 : x
2. Step 2: Convert to fraction form
   42,772.59/64,124.22 = 17,831.34/x
3. Step 3: Cross multiply
   42,772.59x = 64,124.22 × 17,831.34
4. Step 4: Simplify right side
   42,772.59x = 1,143,420,769.05
5. Step 5: Solve for x
   x = 1,143,420,769.05/42,772.59
6. Step 6: Final answer
   x = 26,732.56