Finding the Fourth Proportional to 10,377.42, 15,562.53 and 5,380.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,377.42 : 15,562.53 = 5,380.17 : x
2. Step 2: Convert to fraction form
   10,377.42/15,562.53 = 5,380.17/x
3. Step 3: Cross multiply
   10,377.42x = 15,562.53 × 5,380.17
4. Step 4: Simplify right side
   10,377.42x = 83,729,057.03
5. Step 5: Solve for x
   x = 83,729,057.03/10,377.42
6. Step 6: Final answer
   x = 8,068.39