Finding the Fourth Proportional to 105,074.19, 144,901.23 and 70,696.37

Step by Step Solution

1. Step 1: Write the proportion equation
   105,074.19 : 144,901.23 = 70,696.37 : x
2. Step 2: Convert to fraction form
   105,074.19/144,901.23 = 70,696.37/x
3. Step 3: Cross multiply
   105,074.19x = 144,901.23 × 70,696.37
4. Step 4: Simplify right side
   105,074.19x = 10,243,990,969.54
5. Step 5: Solve for x
   x = 10,243,990,969.54/105,074.19
6. Step 6: Final answer
   x = 97,492.93