Finding the Fourth Proportional to 70,035.39, 105,071.31 and 20,119.56

Step by Step Solution

1. Step 1: Write the proportion equation
   70,035.39 : 105,071.31 = 20,119.56 : x
2. Step 2: Convert to fraction form
   70,035.39/105,071.31 = 20,119.56/x
3. Step 3: Cross multiply
   70,035.39x = 105,071.31 × 20,119.56
4. Step 4: Simplify right side
   70,035.39x = 2,113,988,525.82
5. Step 5: Solve for x
   x = 2,113,988,525.82/70,035.39
6. Step 6: Final answer
   x = 30,184.58