Finding the Fourth Proportional to 105,047.30, 144,961.69 and 62,605.06

Step by Step Solution

1. Step 1: Write the proportion equation
   105,047.30 : 144,961.69 = 62,605.06 : x
2. Step 2: Convert to fraction form
   105,047.30/144,961.69 = 62,605.06/x
3. Step 3: Cross multiply
   105,047.30x = 144,961.69 × 62,605.06
4. Step 4: Simplify right side
   105,047.30x = 9,075,335,300.15
5. Step 5: Solve for x
   x = 9,075,335,300.15/105,047.30
6. Step 6: Final answer
   x = 86,392.85