Finding the Fourth Proportional to 10,374.78, 15,566.73 and 5,443.26

Step by Step Solution

1. Step 1: Write the proportion equation
   10,374.78 : 15,566.73 = 5,443.26 : x
2. Step 2: Convert to fraction form
   10,374.78/15,566.73 = 5,443.26/x
3. Step 3: Cross multiply
   10,374.78x = 15,566.73 × 5,443.26
4. Step 4: Simplify right side
   10,374.78x = 84,733,709.86
5. Step 5: Solve for x
   x = 84,733,709.86/10,374.78
6. Step 6: Final answer
   x = 8,167.28