Finding the Fourth Proportional to 59,488.18, 89,240.51 and 20,056.57

Step by Step Solution

1. Step 1: Write the proportion equation
   59,488.18 : 89,240.51 = 20,056.57 : x
2. Step 2: Convert to fraction form
   59,488.18/89,240.51 = 20,056.57/x
3. Step 3: Cross multiply
   59,488.18x = 89,240.51 × 20,056.57
4. Step 4: Simplify right side
   59,488.18x = 1,789,858,535.65
5. Step 5: Solve for x
   x = 1,789,858,535.65/59,488.18
6. Step 6: Final answer
   x = 30,087.63