Finding the Fourth Proportional to 70,743.09, 105,937.18 and 42,262.48

Step by Step Solution

1. Step 1: Write the proportion equation
   70,743.09 : 105,937.18 = 42,262.48 : x
2. Step 2: Convert to fraction form
   70,743.09/105,937.18 = 42,262.48/x
3. Step 3: Cross multiply
   70,743.09x = 105,937.18 × 42,262.48
4. Step 4: Simplify right side
   70,743.09x = 4,477,167,951.01
5. Step 5: Solve for x
   x = 4,477,167,951.01/70,743.09
6. Step 6: Final answer
   x = 63,287.71