Finding the Fourth Proportional to 104,429.73, 144,109.15 and 56,682.05

Step by Step Solution

1. Step 1: Write the proportion equation
   104,429.73 : 144,109.15 = 56,682.05 : x
2. Step 2: Convert to fraction form
   104,429.73/144,109.15 = 56,682.05/x
3. Step 3: Cross multiply
   104,429.73x = 144,109.15 × 56,682.05
4. Step 4: Simplify right side
   104,429.73x = 8,168,402,045.76
5. Step 5: Solve for x
   x = 8,168,402,045.76/104,429.73
6. Step 6: Final answer
   x = 78,219.12