Finding the Fourth Proportional to 17,978.88, 26,971.86 and 5,500.69

Step by Step Solution

1. Step 1: Write the proportion equation
   17,978.88 : 26,971.86 = 5,500.69 : x
2. Step 2: Convert to fraction form
   17,978.88/26,971.86 = 5,500.69/x
3. Step 3: Cross multiply
   17,978.88x = 26,971.86 × 5,500.69
4. Step 4: Simplify right side
   17,978.88x = 148,363,840.58
5. Step 5: Solve for x
   x = 148,363,840.58/17,978.88
6. Step 6: Final answer
   x = 8,252.12