Finding the Fourth Proportional to 10,761.81, 14,865.42 and 7,398.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,761.81 : 14,865.42 = 7,398.79 : x
2. Step 2: Convert to fraction form
   10,761.81/14,865.42 = 7,398.79/x
3. Step 3: Cross multiply
   10,761.81x = 14,865.42 × 7,398.79
4. Step 4: Simplify right side
   10,761.81x = 109,986,132.61
5. Step 5: Solve for x
   x = 109,986,132.61/10,761.81
6. Step 6: Final answer
   x = 10,220.04