Finding the Fourth Proportional to 104,429.18, 144,112.42 and 56,682.54

Step by Step Solution

1. Step 1: Write the proportion equation
   104,429.18 : 144,112.42 = 56,682.54 : x
2. Step 2: Convert to fraction form
   104,429.18/144,112.42 = 56,682.54/x
3. Step 3: Cross multiply
   104,429.18x = 144,112.42 × 56,682.54
4. Step 4: Simplify right side
   104,429.18x = 8,168,658,011.15
5. Step 5: Solve for x
   x = 8,168,658,011.15/104,429.18
6. Step 6: Final answer
   x = 78,221.99