Finding the Fourth Proportional to 104,895, 144,755.91 and 57,147.12

Step by Step Solution

1. Step 1: Write the proportion equation
   104,895 : 144,755.91 = 57,147.12 : x
2. Step 2: Convert to fraction form
   104,895/144,755.91 = 57,147.12/x
3. Step 3: Cross multiply
   104,895x = 144,755.91 × 57,147.12
4. Step 4: Simplify right side
   104,895x = 8,272,383,359.48
5. Step 5: Solve for x
   x = 8,272,383,359.48/104,895
6. Step 6: Final answer
   x = 78,863.47