Finding the Fourth Proportional to 11,181.84, 15,404.34 and 7,818.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,181.84 : 15,404.34 = 7,818.42 : x
2. Step 2: Convert to fraction form
   11,181.84/15,404.34 = 7,818.42/x
3. Step 3: Cross multiply
   11,181.84x = 15,404.34 × 7,818.42
4. Step 4: Simplify right side
   11,181.84x = 120,437,599.94
5. Step 5: Solve for x
   x = 120,437,599.94/11,181.84
6. Step 6: Final answer
   x = 10,770.82