Finding the Fourth Proportional to 59,615, 89,286.42 and 28,472.12

Step by Step Solution

1. Step 1: Write the proportion equation
   59,615 : 89,286.42 = 28,472.12 : x
2. Step 2: Convert to fraction form
   59,615/89,286.42 = 28,472.12/x
3. Step 3: Cross multiply
   59,615x = 89,286.42 × 28,472.12
4. Step 4: Simplify right side
   59,615x = 2,542,173,664.61
5. Step 5: Solve for x
   x = 2,542,173,664.61/59,615
6. Step 6: Final answer
   x = 42,643.19