Finding the Fourth Proportional to 10,343.25, 15,524.59 and 5,416.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,343.25 : 15,524.59 = 5,416.42 : x
2. Step 2: Convert to fraction form
   10,343.25/15,524.59 = 5,416.42/x
3. Step 3: Cross multiply
   10,343.25x = 15,524.59 × 5,416.42
4. Step 4: Simplify right side
   10,343.25x = 84,087,705.63
5. Step 5: Solve for x
   x = 84,087,705.63/10,343.25
6. Step 6: Final answer
   x = 8,129.72