Finding the Fourth Proportional to 72,770, 100,448.52 and 42,962

Step by Step Solution

1. Step 1: Write the proportion equation
   72,770 : 100,448.52 = 42,962 : x
2. Step 2: Convert to fraction form
   72,770/100,448.52 = 42,962/x
3. Step 3: Cross multiply
   72,770x = 100,448.52 × 42,962
4. Step 4: Simplify right side
   72,770x = 4,315,469,316.24
5. Step 5: Solve for x
   x = 4,315,469,316.24/72,770
6. Step 6: Final answer
   x = 59,302.86