Finding the Fourth Proportional to 78,743.67, 108,663.89 and 42,934.38

Step by Step Solution

1. Step 1: Write the proportion equation
   78,743.67 : 108,663.89 = 42,934.38 : x
2. Step 2: Convert to fraction form
   78,743.67/108,663.89 = 42,934.38/x
3. Step 3: Cross multiply
   78,743.67x = 108,663.89 × 42,934.38
4. Step 4: Simplify right side
   78,743.67x = 4,665,416,745.54
5. Step 5: Solve for x
   x = 4,665,416,745.54/78,743.67
6. Step 6: Final answer
   x = 59,248.15