Finding the Fourth Proportional to 59,810.54, 89,729.70 and 20,367.99

Step by Step Solution

1. Step 1: Write the proportion equation
   59,810.54 : 89,729.70 = 20,367.99 : x
2. Step 2: Convert to fraction form
   59,810.54/89,729.70 = 20,367.99/x
3. Step 3: Cross multiply
   59,810.54x = 89,729.70 × 20,367.99
4. Step 4: Simplify right side
   59,810.54x = 1,827,613,632.30
5. Step 5: Solve for x
   x = 1,827,613,632.30/59,810.54
6. Step 6: Final answer
   x = 30,556.72