Finding the Fourth Proportional to 105,071.56, 144,863.96 and 76,367.58

Step by Step Solution

1. Step 1: Write the proportion equation
   105,071.56 : 144,863.96 = 76,367.58 : x
2. Step 2: Convert to fraction form
   105,071.56/144,863.96 = 76,367.58/x
3. Step 3: Cross multiply
   105,071.56x = 144,863.96 × 76,367.58
4. Step 4: Simplify right side
   105,071.56x = 11,062,910,054.42
5. Step 5: Solve for x
   x = 11,062,910,054.42/105,071.56
6. Step 6: Final answer
   x = 105,289.29