Finding the Fourth Proportional to 12,075.42, 18,030.53 and 10,817.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,075.42 : 18,030.53 = 10,817.91 : x
2. Step 2: Convert to fraction form
   12,075.42/18,030.53 = 10,817.91/x
3. Step 3: Cross multiply
   12,075.42x = 18,030.53 × 10,817.91
4. Step 4: Simplify right side
   12,075.42x = 195,052,596.70
5. Step 5: Solve for x
   x = 195,052,596.70/12,075.42
6. Step 6: Final answer
   x = 16,152.86