Finding the Fourth Proportional to 59,708.52, 81,863.75 and 58,642.35

Step by Step Solution

1. Step 1: Write the proportion equation
   59,708.52 : 81,863.75 = 58,642.35 : x
2. Step 2: Convert to fraction form
   59,708.52/81,863.75 = 58,642.35/x
3. Step 3: Cross multiply
   59,708.52x = 81,863.75 × 58,642.35
4. Step 4: Simplify right side
   59,708.52x = 4,800,682,679.81
5. Step 5: Solve for x
   x = 4,800,682,679.81/59,708.52
6. Step 6: Final answer
   x = 80,401.97