Finding the Fourth Proportional to 70,618.15, 105,828.81 and 53,067.48

Step by Step Solution

1. Step 1: Write the proportion equation
   70,618.15 : 105,828.81 = 53,067.48 : x
2. Step 2: Convert to fraction form
   70,618.15/105,828.81 = 53,067.48/x
3. Step 3: Cross multiply
   70,618.15x = 105,828.81 × 53,067.48
4. Step 4: Simplify right side
   70,618.15x = 5,616,068,258.10
5. Step 5: Solve for x
   x = 5,616,068,258.10/70,618.15
6. Step 6: Final answer
   x = 79,527.26