Finding the Fourth Proportional to 104,710.48, 144,499.77 and 56,964.02

Step by Step Solution

1. Step 1: Write the proportion equation
   104,710.48 : 144,499.77 = 56,964.02 : x
2. Step 2: Convert to fraction form
   104,710.48/144,499.77 = 56,964.02/x
3. Step 3: Cross multiply
   104,710.48x = 144,499.77 × 56,964.02
4. Step 4: Simplify right side
   104,710.48x = 8,231,287,065.78
5. Step 5: Solve for x
   x = 8,231,287,065.78/104,710.48
6. Step 6: Final answer
   x = 78,609.97