Finding the Fourth Proportional to 104,142.53, 143,716.83 and 56,395.96

Step by Step Solution

1. Step 1: Write the proportion equation
   104,142.53 : 143,716.83 = 56,395.96 : x
2. Step 2: Convert to fraction form
   104,142.53/143,716.83 = 56,395.96/x
3. Step 3: Cross multiply
   104,142.53x = 143,716.83 × 56,395.96
4. Step 4: Simplify right side
   104,142.53x = 8,105,048,596.01
5. Step 5: Solve for x
   x = 8,105,048,596.01/104,142.53
6. Step 6: Final answer
   x = 77,826.50