Finding the Fourth Proportional to 10,381.19, 14,326.39 and 5,665.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,381.19 : 14,326.39 = 5,665.73 : x
2. Step 2: Convert to fraction form
   10,381.19/14,326.39 = 5,665.73/x
3. Step 3: Cross multiply
   10,381.19x = 14,326.39 × 5,665.73
4. Step 4: Simplify right side
   10,381.19x = 81,169,457.61
5. Step 5: Solve for x
   x = 81,169,457.61/10,381.19
6. Step 6: Final answer
   x = 7,818.90