Finding the Fourth Proportional to 10,342.42, 14,266.14 and 9,019.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,342.42 : 14,266.14 = 9,019.30 : x
2. Step 2: Convert to fraction form
   10,342.42/14,266.14 = 9,019.30/x
3. Step 3: Cross multiply
   10,342.42x = 14,266.14 × 9,019.30
4. Step 4: Simplify right side
   10,342.42x = 128,670,596.50
5. Step 5: Solve for x
   x = 128,670,596.50/10,342.42
6. Step 6: Final answer
   x = 12,441.05