Finding the Fourth Proportional to 11,074.20, 15,278.56 and 7,097.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,074.20 : 15,278.56 = 7,097.50 : x
2. Step 2: Convert to fraction form
   11,074.20/15,278.56 = 7,097.50/x
3. Step 3: Cross multiply
   11,074.20x = 15,278.56 × 7,097.50
4. Step 4: Simplify right side
   11,074.20x = 108,439,580.95
5. Step 5: Solve for x
   x = 108,439,580.95/11,074.20
6. Step 6: Final answer
   x = 9,792.09