Finding the Fourth Proportional to 105,284.59, 145,046.42 and 73,396.51

Step by Step Solution

1. Step 1: Write the proportion equation
   105,284.59 : 145,046.42 = 73,396.51 : x
2. Step 2: Convert to fraction form
   105,284.59/145,046.42 = 73,396.51/x
3. Step 3: Cross multiply
   105,284.59x = 145,046.42 × 73,396.51
4. Step 4: Simplify right side
   105,284.59x = 10,645,901,015.99
5. Step 5: Solve for x
   x = 10,645,901,015.99/105,284.59
6. Step 6: Final answer
   x = 101,115.47