Finding the Fourth Proportional to 11,389.08, 17,054.82 and 7,687.32

Step by Step Solution

1. Step 1: Write the proportion equation
   11,389.08 : 17,054.82 = 7,687.32 : x
2. Step 2: Convert to fraction form
   11,389.08/17,054.82 = 7,687.32/x
3. Step 3: Cross multiply
   11,389.08x = 17,054.82 × 7,687.32
4. Step 4: Simplify right side
   11,389.08x = 131,105,858.88
5. Step 5: Solve for x
   x = 131,105,858.88/11,389.08
6. Step 6: Final answer
   x = 11,511.54