Finding the Fourth Proportional to 17,978.63, 26,971.49 and 5,500.44

Step by Step Solution

1. Step 1: Write the proportion equation
   17,978.63 : 26,971.49 = 5,500.44 : x
2. Step 2: Convert to fraction form
   17,978.63/26,971.49 = 5,500.44/x
3. Step 3: Cross multiply
   17,978.63x = 26,971.49 × 5,500.44
4. Step 4: Simplify right side
   17,978.63x = 148,355,034.95
5. Step 5: Solve for x
   x = 148,355,034.95/17,978.63
6. Step 6: Final answer
   x = 8,251.74