Finding the Fourth Proportional to 104,980.34, 144,872.78 and 57,233.69

Step by Step Solution

1. Step 1: Write the proportion equation
   104,980.34 : 144,872.78 = 57,233.69 : x
2. Step 2: Convert to fraction form
   104,980.34/144,872.78 = 57,233.69/x
3. Step 3: Cross multiply
   104,980.34x = 144,872.78 × 57,233.69
4. Step 4: Simplify right side
   104,980.34x = 8,291,603,196.37
5. Step 5: Solve for x
   x = 8,291,603,196.37/104,980.34
6. Step 6: Final answer
   x = 78,982.44