Finding the Fourth Proportional to 78,485.69, 108,310.97 and 42,676.00

Step by Step Solution

1. Step 1: Write the proportion equation
   78,485.69 : 108,310.97 = 42,676.00 : x
2. Step 2: Convert to fraction form
   78,485.69/108,310.97 = 42,676.00/x
3. Step 3: Cross multiply
   78,485.69x = 108,310.97 × 42,676.00
4. Step 4: Simplify right side
   78,485.69x = 4,622,278,791.63
5. Step 5: Solve for x
   x = 4,622,278,791.63/78,485.69
6. Step 6: Final answer
   x = 58,893.27