Finding the Fourth Proportional to 78,676.52, 108,573.53 and 42,866.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,676.52 : 108,573.53 = 42,866.82 : x
2. Step 2: Convert to fraction form
   78,676.52/108,573.53 = 42,866.82/x
3. Step 3: Cross multiply
   78,676.52x = 108,573.53 × 42,866.82
4. Step 4: Simplify right side
   78,676.52x = 4,654,201,752.94
5. Step 5: Solve for x
   x = 4,654,201,752.94/78,676.52
6. Step 6: Final answer
   x = 59,156.18