Finding the Fourth Proportional to 15,031.98, 20,735.82 and 9,060.12

Step by Step Solution

1. Step 1: Write the proportion equation
   15,031.98 : 20,735.82 = 9,060.12 : x
2. Step 2: Convert to fraction form
   15,031.98/20,735.82 = 9,060.12/x
3. Step 3: Cross multiply
   15,031.98x = 20,735.82 × 9,060.12
4. Step 4: Simplify right side
   15,031.98x = 187,869,017.50
5. Step 5: Solve for x
   x = 187,869,017.50/15,031.98
6. Step 6: Final answer
   x = 12,497.96