Finding the Fourth Proportional to 86,559.61, 129,846.84 and 30,394.89

Step by Step Solution

1. Step 1: Write the proportion equation
   86,559.61 : 129,846.84 = 30,394.89 : x
2. Step 2: Convert to fraction form
   86,559.61/129,846.84 = 30,394.89/x
3. Step 3: Cross multiply
   86,559.61x = 129,846.84 × 30,394.89
4. Step 4: Simplify right side
   86,559.61x = 3,946,679,769.41
5. Step 5: Solve for x
   x = 3,946,679,769.41/86,559.61
6. Step 6: Final answer
   x = 45,594.94