Finding the Fourth Proportional to 11,097.18, 15,292.89 and 7,947.90

Step by Step Solution

1. Step 1: Write the proportion equation
   11,097.18 : 15,292.89 = 7,947.90 : x
2. Step 2: Convert to fraction form
   11,097.18/15,292.89 = 7,947.90/x
3. Step 3: Cross multiply
   11,097.18x = 15,292.89 × 7,947.90
4. Step 4: Simplify right side
   11,097.18x = 121,546,360.43
5. Step 5: Solve for x
   x = 121,546,360.43/11,097.18
6. Step 6: Final answer
   x = 10,952.91