Finding the Fourth Proportional to 104,716.32, 144,443.71 and 91,319.73

Step by Step Solution

1. Step 1: Write the proportion equation
   104,716.32 : 144,443.71 = 91,319.73 : x
2. Step 2: Convert to fraction form
   104,716.32/144,443.71 = 91,319.73/x
3. Step 3: Cross multiply
   104,716.32x = 144,443.71 × 91,319.73
4. Step 4: Simplify right side
   104,716.32x = 13,190,560,597.40
5. Step 5: Solve for x
   x = 13,190,560,597.40/104,716.32
6. Step 6: Final answer
   x = 125,964.71