Finding the Fourth Proportional to 59,899.81, 82,688.30 and 38,689.42

Step by Step Solution

1. Step 1: Write the proportion equation
   59,899.81 : 82,688.30 = 38,689.42 : x
2. Step 2: Convert to fraction form
   59,899.81/82,688.30 = 38,689.42/x
3. Step 3: Cross multiply
   59,899.81x = 82,688.30 × 38,689.42
4. Step 4: Simplify right side
   59,899.81x = 3,199,162,367.79
5. Step 5: Solve for x
   x = 3,199,162,367.79/59,899.81
6. Step 6: Final answer
   x = 53,408.56