Finding the Fourth Proportional to 11,294.78, 16,941.72 and 5,374.55

Step by Step Solution

1. Step 1: Write the proportion equation
   11,294.78 : 16,941.72 = 5,374.55 : x
2. Step 2: Convert to fraction form
   11,294.78/16,941.72 = 5,374.55/x
3. Step 3: Cross multiply
   11,294.78x = 16,941.72 × 5,374.55
4. Step 4: Simplify right side
   11,294.78x = 91,054,036.52
5. Step 5: Solve for x
   x = 91,054,036.52/11,294.78
6. Step 6: Final answer
   x = 8,061.60