Finding the Fourth Proportional to 78,769.98, 108,665.06 and 53,285.27

Step by Step Solution

1. Step 1: Write the proportion equation
   78,769.98 : 108,665.06 = 53,285.27 : x
2. Step 2: Convert to fraction form
   78,769.98/108,665.06 = 53,285.27/x
3. Step 3: Cross multiply
   78,769.98x = 108,665.06 × 53,285.27
4. Step 4: Simplify right side
   78,769.98x = 5,790,246,251.91
5. Step 5: Solve for x
   x = 5,790,246,251.91/78,769.98
6. Step 6: Final answer
   x = 73,508.29