Finding the Fourth Proportional to 11,070.78, 16,608.90 and 5,526.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,070.78 : 16,608.90 = 5,526.78 : x
2. Step 2: Convert to fraction form
   11,070.78/16,608.90 = 5,526.78/x
3. Step 3: Cross multiply
   11,070.78x = 16,608.90 × 5,526.78
4. Step 4: Simplify right side
   11,070.78x = 91,793,736.34
5. Step 5: Solve for x
   x = 91,793,736.34/11,070.78
6. Step 6: Final answer
   x = 8,291.53