Finding the Fourth Proportional to 82.48, 123.63 and 58.10

Step by Step Solution

1. Step 1: Write the proportion equation
   82.48 : 123.63 = 58.10 : x
2. Step 2: Convert to fraction form
   82.48/123.63 = 58.10/x
3. Step 3: Cross multiply
   82.48x = 123.63 × 58.10
4. Step 4: Simplify right side
   82.48x = 7,182.90
5. Step 5: Solve for x
   x = 7,182.90/82.48
6. Step 6: Final answer
   x = 87.09