Finding the Fourth Proportional to 84,323.52, 126,601.92 and 42,799.68

Step by Step Solution

1. Step 1: Write the proportion equation
   84,323.52 : 126,601.92 = 42,799.68 : x
2. Step 2: Convert to fraction form
   84,323.52/126,601.92 = 42,799.68/x
3. Step 3: Cross multiply
   84,323.52x = 126,601.92 × 42,799.68
4. Step 4: Simplify right side
   84,323.52x = 5,418,521,663.39
5. Step 5: Solve for x
   x = 5,418,521,663.39/84,323.52
6. Step 6: Final answer
   x = 64,258.72