Finding the Fourth Proportional to 10,381.93, 14,326.91 and 5,665.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,381.93 : 14,326.91 = 5,665.90 : x
2. Step 2: Convert to fraction form
   10,381.93/14,326.91 = 5,665.90/x
3. Step 3: Cross multiply
   10,381.93x = 14,326.91 × 5,665.90
4. Step 4: Simplify right side
   10,381.93x = 81,174,739.40
5. Step 5: Solve for x
   x = 81,174,739.40/10,381.93
6. Step 6: Final answer
   x = 7,818.85