Finding the Fourth Proportional to 105,315.14, 145,317.94 and 59,994.02

Step by Step Solution

1. Step 1: Write the proportion equation
   105,315.14 : 145,317.94 = 59,994.02 : x
2. Step 2: Convert to fraction form
   105,315.14/145,317.94 = 59,994.02/x
3. Step 3: Cross multiply
   105,315.14x = 145,317.94 × 59,994.02
4. Step 4: Simplify right side
   105,315.14x = 8,718,207,398.72
5. Step 5: Solve for x
   x = 8,718,207,398.72/105,315.14
6. Step 6: Final answer
   x = 82,782.09