Finding the Fourth Proportional to 11,005.89, 15,188.07 and 5,970.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,005.89 : 15,188.07 = 5,970.09 : x
2. Step 2: Convert to fraction form
   11,005.89/15,188.07 = 5,970.09/x
3. Step 3: Cross multiply
   11,005.89x = 15,188.07 × 5,970.09
4. Step 4: Simplify right side
   11,005.89x = 90,674,144.83
5. Step 5: Solve for x
   x = 90,674,144.83/11,005.89
6. Step 6: Final answer
   x = 8,238.69