Finding the Fourth Proportional to 10,290.68, 14,186.59 and 7,305.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,290.68 : 14,186.59 = 7,305.42 : x
2. Step 2: Convert to fraction form
   10,290.68/14,186.59 = 7,305.42/x
3. Step 3: Cross multiply
   10,290.68x = 14,186.59 × 7,305.42
4. Step 4: Simplify right side
   10,290.68x = 103,639,074.35
5. Step 5: Solve for x
   x = 103,639,074.35/10,290.68
6. Step 6: Final answer
   x = 10,071.16