Finding the Fourth Proportional to 42,764.96, 64,112.78 and 17,823.71

Step by Step Solution

1. Step 1: Write the proportion equation
   42,764.96 : 64,112.78 = 17,823.71 : x
2. Step 2: Convert to fraction form
   42,764.96/64,112.78 = 17,823.71/x
3. Step 3: Cross multiply
   42,764.96x = 64,112.78 × 17,823.71
4. Step 4: Simplify right side
   42,764.96x = 1,142,727,802.86
5. Step 5: Solve for x
   x = 1,142,727,802.86/42,764.96
6. Step 6: Final answer
   x = 26,721.12