Finding the Fourth Proportional to 105,109.96, 144,986.84 and 74,904.96

Step by Step Solution

1. Step 1: Write the proportion equation
   105,109.96 : 144,986.84 = 74,904.96 : x
2. Step 2: Convert to fraction form
   105,109.96/144,986.84 = 74,904.96/x
3. Step 3: Cross multiply
   105,109.96x = 144,986.84 × 74,904.96
4. Step 4: Simplify right side
   105,109.96x = 10,860,233,450.73
5. Step 5: Solve for x
   x = 10,860,233,450.73/105,109.96
6. Step 6: Final answer
   x = 103,322.59