Finding the Fourth Proportional to 105,046.80, 144,961 and 62,604.56

Step by Step Solution

1. Step 1: Write the proportion equation
   105,046.80 : 144,961 = 62,604.56 : x
2. Step 2: Convert to fraction form
   105,046.80/144,961 = 62,604.56/x
3. Step 3: Cross multiply
   105,046.80x = 144,961 × 62,604.56
4. Step 4: Simplify right side
   105,046.80x = 9,075,219,622.16
5. Step 5: Solve for x
   x = 9,075,219,622.16/105,046.80
6. Step 6: Final answer
   x = 86,392.16