Finding the Fourth Proportional to 215,091.50, 322,568.17 and 70,964.91

Step by Step Solution

1. Step 1: Write the proportion equation
   215,091.50 : 322,568.17 = 70,964.91 : x
2. Step 2: Convert to fraction form
   215,091.50/322,568.17 = 70,964.91/x
3. Step 3: Cross multiply
   215,091.50x = 322,568.17 × 70,964.91
4. Step 4: Simplify right side
   215,091.50x = 22,891,019,185.25
5. Step 5: Solve for x
   x = 22,891,019,185.25/215,091.50
6. Step 6: Final answer
   x = 106,424.57