Finding the Fourth Proportional to 16,139.02, 22,271.88 and 9,065.47

Step by Step Solution

1. Step 1: Write the proportion equation
   16,139.02 : 22,271.88 = 9,065.47 : x
2. Step 2: Convert to fraction form
   16,139.02/22,271.88 = 9,065.47/x
3. Step 3: Cross multiply
   16,139.02x = 22,271.88 × 9,065.47
4. Step 4: Simplify right side
   16,139.02x = 201,905,059.98
5. Step 5: Solve for x
   x = 201,905,059.98/16,139.02
6. Step 6: Final answer
   x = 12,510.37