Finding the Fourth Proportional to 104,535.98, 144,259.83 and 56,789.37

Step by Step Solution

1. Step 1: Write the proportion equation
   104,535.98 : 144,259.83 = 56,789.37 : x
2. Step 2: Convert to fraction form
   104,535.98/144,259.83 = 56,789.37/x
3. Step 3: Cross multiply
   104,535.98x = 144,259.83 × 56,789.37
4. Step 4: Simplify right side
   104,535.98x = 8,192,424,862.01
5. Step 5: Solve for x
   x = 8,192,424,862.01/104,535.98
6. Step 6: Final answer
   x = 78,369.43