Finding the Fourth Proportional to 11,014.30, 15,199.80 and 5,978.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,014.30 : 15,199.80 = 5,978.61 : x
2. Step 2: Convert to fraction form
   11,014.30/15,199.80 = 5,978.61/x
3. Step 3: Cross multiply
   11,014.30x = 15,199.80 × 5,978.61
4. Step 4: Simplify right side
   11,014.30x = 90,873,676.28
5. Step 5: Solve for x
   x = 90,873,676.28/11,014.30
6. Step 6: Final answer
   x = 8,250.52