Finding the Fourth Proportional to 70,743.59, 105,937.94 and 42,262.98

Step by Step Solution

1. Step 1: Write the proportion equation
   70,743.59 : 105,937.94 = 42,262.98 : x
2. Step 2: Convert to fraction form
   70,743.59/105,937.94 = 42,262.98/x
3. Step 3: Cross multiply
   70,743.59x = 105,937.94 × 42,262.98
4. Step 4: Simplify right side
   70,743.59x = 4,477,252,828.15
5. Step 5: Solve for x
   x = 4,477,252,828.15/70,743.59
6. Step 6: Final answer
   x = 63,288.46