Finding the Fourth Proportional to 104,705.48, 144,493.43 and 56,958.71

Step by Step Solution

1. Step 1: Write the proportion equation
   104,705.48 : 144,493.43 = 56,958.71 : x
2. Step 2: Convert to fraction form
   104,705.48/144,493.43 = 56,958.71/x
3. Step 3: Cross multiply
   104,705.48x = 144,493.43 × 56,958.71
4. Step 4: Simplify right side
   104,705.48x = 8,230,158,369.01
5. Step 5: Solve for x
   x = 8,230,158,369.01/104,705.48
6. Step 6: Final answer
   x = 78,602.94