Finding the Fourth Proportional to 11,005.98, 15,188.14 and 5,970.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,005.98 : 15,188.14 = 5,970.12 : x
2. Step 2: Convert to fraction form
   11,005.98/15,188.14 = 5,970.12/x
3. Step 3: Cross multiply
   11,005.98x = 15,188.14 × 5,970.12
4. Step 4: Simplify right side
   11,005.98x = 90,675,018.38
5. Step 5: Solve for x
   x = 90,675,018.38/11,005.98
6. Step 6: Final answer
   x = 8,238.70