Finding the Fourth Proportional to 42,831.83, 64,199.95 and 17,863.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42,831.83 : 64,199.95 = 17,863.58 : x
2. Step 2: Convert to fraction form
   42,831.83/64,199.95 = 17,863.58/x
3. Step 3: Cross multiply
   42,831.83x = 64,199.95 × 17,863.58
4. Step 4: Simplify right side
   42,831.83x = 1,146,841,058.66
5. Step 5: Solve for x
   x = 1,146,841,058.66/42,831.83
6. Step 6: Final answer
   x = 26,775.44