Finding the Fourth Proportional to 104,445.42, 144,134.33 and 56,698.43

Step by Step Solution

1. Step 1: Write the proportion equation
   104,445.42 : 144,134.33 = 56,698.43 : x
2. Step 2: Convert to fraction form
   104,445.42/144,134.33 = 56,698.43/x
3. Step 3: Cross multiply
   104,445.42x = 144,134.33 × 56,698.43
4. Step 4: Simplify right side
   104,445.42x = 8,172,189,215.94
5. Step 5: Solve for x
   x = 8,172,189,215.94/104,445.42
6. Step 6: Final answer
   x = 78,243.63