Finding the Fourth Proportional to 11,382.06, 17,079.57 and 7,488.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,382.06 : 17,079.57 = 7,488.30 : x
2. Step 2: Convert to fraction form
   11,382.06/17,079.57 = 7,488.30/x
3. Step 3: Cross multiply
   11,382.06x = 17,079.57 × 7,488.30
4. Step 4: Simplify right side
   11,382.06x = 127,896,944.03
5. Step 5: Solve for x
   x = 127,896,944.03/11,382.06
6. Step 6: Final answer
   x = 11,236.71