Finding the Fourth Proportional to 57,767.46, 86,656.05 and 20,323.59

Step by Step Solution

1. Step 1: Write the proportion equation
   57,767.46 : 86,656.05 = 20,323.59 : x
2. Step 2: Convert to fraction form
   57,767.46/86,656.05 = 20,323.59/x
3. Step 3: Cross multiply
   57,767.46x = 86,656.05 × 20,323.59
4. Step 4: Simplify right side
   57,767.46x = 1,761,162,031.22
5. Step 5: Solve for x
   x = 1,761,162,031.22/57,767.46
6. Step 6: Final answer
   x = 30,487.09