Finding the Fourth Proportional to 59,623.57, 89,308.99 and 40,815.37

Step by Step Solution

1. Step 1: Write the proportion equation
   59,623.57 : 89,308.99 = 40,815.37 : x
2. Step 2: Convert to fraction form
   59,623.57/89,308.99 = 40,815.37/x
3. Step 3: Cross multiply
   59,623.57x = 89,308.99 × 40,815.37
4. Step 4: Simplify right side
   59,623.57x = 3,645,179,471.18
5. Step 5: Solve for x
   x = 3,645,179,471.18/59,623.57
6. Step 6: Final answer
   x = 61,136.55