Finding the Fourth Proportional to 10,494.81, 14,479.32 and 7,131.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,494.81 : 14,479.32 = 7,131.81 : x
2. Step 2: Convert to fraction form
   10,494.81/14,479.32 = 7,131.81/x
3. Step 3: Cross multiply
   10,494.81x = 14,479.32 × 7,131.81
4. Step 4: Simplify right side
   10,494.81x = 103,263,759.17
5. Step 5: Solve for x
   x = 103,263,759.17/10,494.81
6. Step 6: Final answer
   x = 9,839.51