Finding the Fourth Proportional to 39,732.72, 59,607.72 and 12,030

Step by Step Solution

1. Step 1: Write the proportion equation
   39,732.72 : 59,607.72 = 12,030 : x
2. Step 2: Convert to fraction form
   39,732.72/59,607.72 = 12,030/x
3. Step 3: Cross multiply
   39,732.72x = 59,607.72 × 12,030
4. Step 4: Simplify right side
   39,732.72x = 717,080,871.60
5. Step 5: Solve for x
   x = 717,080,871.60/39,732.72
6. Step 6: Final answer
   x = 18,047.62