Finding the Fourth Proportional to 104,426.82, 144,109.50 and 56,680.17

Step by Step Solution

1. Step 1: Write the proportion equation
   104,426.82 : 144,109.50 = 56,680.17 : x
2. Step 2: Convert to fraction form
   104,426.82/144,109.50 = 56,680.17/x
3. Step 3: Cross multiply
   104,426.82x = 144,109.50 × 56,680.17
4. Step 4: Simplify right side
   104,426.82x = 8,168,150,958.62
5. Step 5: Solve for x
   x = 8,168,150,958.62/104,426.82
6. Step 6: Final answer
   x = 78,218.90