Finding the Fourth Proportional to 78,460.72, 108,275.87 and 42,650.73

Step by Step Solution

1. Step 1: Write the proportion equation
   78,460.72 : 108,275.87 = 42,650.73 : x
2. Step 2: Convert to fraction form
   78,460.72/108,275.87 = 42,650.73/x
3. Step 3: Cross multiply
   78,460.72x = 108,275.87 × 42,650.73
4. Step 4: Simplify right side
   78,460.72x = 4,618,044,896.89
5. Step 5: Solve for x
   x = 4,618,044,896.89/78,460.72
6. Step 6: Final answer
   x = 58,858.05