Finding the Fourth Proportional to 11,025.76, 15,215.65 and 5,990.01

Step by Step Solution

1. Step 1: Write the proportion equation
   11,025.76 : 15,215.65 = 5,990.01 : x
2. Step 2: Convert to fraction form
   11,025.76/15,215.65 = 5,990.01/x
3. Step 3: Cross multiply
   11,025.76x = 15,215.65 × 5,990.01
4. Step 4: Simplify right side
   11,025.76x = 91,141,865.71
5. Step 5: Solve for x
   x = 91,141,865.71/11,025.76
6. Step 6: Final answer
   x = 8,266.27