Finding the Fourth Proportional to 71,020.68, 98,081.43 and 58,964.82

Step by Step Solution

1. Step 1: Write the proportion equation
   71,020.68 : 98,081.43 = 58,964.82 : x
2. Step 2: Convert to fraction form
   71,020.68/98,081.43 = 58,964.82/x
3. Step 3: Cross multiply
   71,020.68x = 98,081.43 × 58,964.82
4. Step 4: Simplify right side
   71,020.68x = 5,783,353,865.29
5. Step 5: Solve for x
   x = 5,783,353,865.29/71,020.68
6. Step 6: Final answer
   x = 81,431.97