Finding the Fourth Proportional to 78,303.27, 108,058.58 and 42,493.28

Step by Step Solution

1. Step 1: Write the proportion equation
   78,303.27 : 108,058.58 = 42,493.28 : x
2. Step 2: Convert to fraction form
   78,303.27/108,058.58 = 42,493.28/x
3. Step 3: Cross multiply
   78,303.27x = 108,058.58 × 42,493.28
4. Step 4: Simplify right side
   78,303.27x = 4,591,762,743.58
5. Step 5: Solve for x
   x = 4,591,762,743.58/78,303.27
6. Step 6: Final answer
   x = 58,640.76