Finding the Fourth Proportional to 70,233.50, 96,923.99 and 42,638.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,233.50 : 96,923.99 = 42,638.50 : x
2. Step 2: Convert to fraction form
   70,233.50/96,923.99 = 42,638.50/x
3. Step 3: Cross multiply
   70,233.50x = 96,923.99 × 42,638.50
4. Step 4: Simplify right side
   70,233.50x = 4,132,693,547.62
5. Step 5: Solve for x
   x = 4,132,693,547.62/70,233.50
6. Step 6: Final answer
   x = 58,842.20