Finding the Fourth Proportional to 70,568.83, 105,819.22 and 40,995.12

Step by Step Solution

1. Step 1: Write the proportion equation
   70,568.83 : 105,819.22 = 40,995.12 : x
2. Step 2: Convert to fraction form
   70,568.83/105,819.22 = 40,995.12/x
3. Step 3: Cross multiply
   70,568.83x = 105,819.22 × 40,995.12
4. Step 4: Simplify right side
   70,568.83x = 4,338,071,417.23
5. Step 5: Solve for x
   x = 4,338,071,417.23/70,568.83
6. Step 6: Final answer
   x = 61,472.92