Finding the Fourth Proportional to 104,443.53, 144,131.91 and 56,696.90

Step by Step Solution

1. Step 1: Write the proportion equation
   104,443.53 : 144,131.91 = 56,696.90 : x
2. Step 2: Convert to fraction form
   104,443.53/144,131.91 = 56,696.90/x
3. Step 3: Cross multiply
   104,443.53x = 144,131.91 × 56,696.90
4. Step 4: Simplify right side
   104,443.53x = 8,171,831,554.81
5. Step 5: Solve for x
   x = 8,171,831,554.81/104,443.53
6. Step 6: Final answer
   x = 78,241.63