Finding the Fourth Proportional to 105,519.35, 158,259.68 and 28,583.82

Step by Step Solution

1. Step 1: Write the proportion equation
   105,519.35 : 158,259.68 = 28,583.82 : x
2. Step 2: Convert to fraction form
   105,519.35/158,259.68 = 28,583.82/x
3. Step 3: Cross multiply
   105,519.35x = 158,259.68 × 28,583.82
4. Step 4: Simplify right side
   105,519.35x = 4,523,666,063.46
5. Step 5: Solve for x
   x = 4,523,666,063.46/105,519.35
6. Step 6: Final answer
   x = 42,870.49