Finding the Fourth Proportional to 10,381.39, 14,326.27 and 5,666.11

Step by Step Solution

1. Step 1: Write the proportion equation
   10,381.39 : 14,326.27 = 5,666.11 : x
2. Step 2: Convert to fraction form
   10,381.39/14,326.27 = 5,666.11/x
3. Step 3: Cross multiply
   10,381.39x = 14,326.27 × 5,666.11
4. Step 4: Simplify right side
   10,381.39x = 81,174,221.71
5. Step 5: Solve for x
   x = 81,174,221.71/10,381.39
6. Step 6: Final answer
   x = 7,819.21