Finding the Fourth Proportional to 82.71, 123.94 and 59.87

Step by Step Solution

1. Step 1: Write the proportion equation
   82.71 : 123.94 = 59.87 : x
2. Step 2: Convert to fraction form
   82.71/123.94 = 59.87/x
3. Step 3: Cross multiply
   82.71x = 123.94 × 59.87
4. Step 4: Simplify right side
   82.71x = 7,420.29
5. Step 5: Solve for x
   x = 7,420.29/82.71
6. Step 6: Final answer
   x = 89.71