Finding the Fourth Proportional to 104,678.56, 144,454.82 and 56,930.82

Step by Step Solution

1. Step 1: Write the proportion equation
   104,678.56 : 144,454.82 = 56,930.82 : x
2. Step 2: Convert to fraction form
   104,678.56/144,454.82 = 56,930.82/x
3. Step 3: Cross multiply
   104,678.56x = 144,454.82 × 56,930.82
4. Step 4: Simplify right side
   104,678.56x = 8,223,931,355.55
5. Step 5: Solve for x
   x = 8,223,931,355.55/104,678.56
6. Step 6: Final answer
   x = 78,563.67