Finding the Fourth Proportional to 59,862.72, 89,820.56 and 31,392.87

Step by Step Solution

1. Step 1: Write the proportion equation
   59,862.72 : 89,820.56 = 31,392.87 : x
2. Step 2: Convert to fraction form
   59,862.72/89,820.56 = 31,392.87/x
3. Step 3: Cross multiply
   59,862.72x = 89,820.56 × 31,392.87
4. Step 4: Simplify right side
   59,862.72x = 2,819,725,163.41
5. Step 5: Solve for x
   x = 2,819,725,163.41/59,862.72
6. Step 6: Final answer
   x = 47,103.19