Finding the Fourth Proportional to 105,064.94, 144,971.48 and 59,118.18

Step by Step Solution

1. Step 1: Write the proportion equation
   105,064.94 : 144,971.48 = 59,118.18 : x
2. Step 2: Convert to fraction form
   105,064.94/144,971.48 = 59,118.18/x
3. Step 3: Cross multiply
   105,064.94x = 144,971.48 × 59,118.18
4. Step 4: Simplify right side
   105,064.94x = 8,570,450,049.51
5. Step 5: Solve for x
   x = 8,570,450,049.51/105,064.94
6. Step 6: Final answer
   x = 81,572.88