Finding the Fourth Proportional to 11,014.16, 15,199.80 and 5,978.58

Step by Step Solution

1. Step 1: Write the proportion equation
   11,014.16 : 15,199.80 = 5,978.58 : x
2. Step 2: Convert to fraction form
   11,014.16/15,199.80 = 5,978.58/x
3. Step 3: Cross multiply
   11,014.16x = 15,199.80 × 5,978.58
4. Step 4: Simplify right side
   11,014.16x = 90,873,220.28
5. Step 5: Solve for x
   x = 90,873,220.28/11,014.16
6. Step 6: Final answer
   x = 8,250.58