Finding the Fourth Proportional to 78,538.38, 108,380.46 and 42,727.47

Step by Step Solution

1. Step 1: Write the proportion equation
   78,538.38 : 108,380.46 = 42,727.47 : x
2. Step 2: Convert to fraction form
   78,538.38/108,380.46 = 42,727.47/x
3. Step 3: Cross multiply
   78,538.38x = 108,380.46 × 42,727.47
4. Step 4: Simplify right side
   78,538.38x = 4,630,822,853.24
5. Step 5: Solve for x
   x = 4,630,822,853.24/78,538.38
6. Step 6: Final answer
   x = 58,962.55