Finding the Fourth Proportional to 59,795.72, 89,555.34 and 57,722.12

Step by Step Solution

1. Step 1: Write the proportion equation
   59,795.72 : 89,555.34 = 57,722.12 : x
2. Step 2: Convert to fraction form
   59,795.72/89,555.34 = 57,722.12/x
3. Step 3: Cross multiply
   59,795.72x = 89,555.34 × 57,722.12
4. Step 4: Simplify right side
   59,795.72x = 5,169,324,082.12
5. Step 5: Solve for x
   x = 5,169,324,082.12/59,795.72
6. Step 6: Final answer
   x = 86,449.73