Finding the Fourth Proportional to 70,498.20, 105,722.70 and 28,367.37

Step by Step Solution

1. Step 1: Write the proportion equation
   70,498.20 : 105,722.70 = 28,367.37 : x
2. Step 2: Convert to fraction form
   70,498.20/105,722.70 = 28,367.37/x
3. Step 3: Cross multiply
   70,498.20x = 105,722.70 × 28,367.37
4. Step 4: Simplify right side
   70,498.20x = 2,999,074,419.69
5. Step 5: Solve for x
   x = 2,999,074,419.69/70,498.20
6. Step 6: Final answer
   x = 42,541.15