Finding the Fourth Proportional to 10,422.42, 14,376.02 and 7,439.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,422.42 : 14,376.02 = 7,439.94 : x
2. Step 2: Convert to fraction form
   10,422.42/14,376.02 = 7,439.94/x
3. Step 3: Cross multiply
   10,422.42x = 14,376.02 × 7,439.94
4. Step 4: Simplify right side
   10,422.42x = 106,956,726.24
5. Step 5: Solve for x
   x = 106,956,726.24/10,422.42
6. Step 6: Final answer
   x = 10,262.18