Finding the Fourth Proportional to 10,919.89, 15,075.18 and 7,353.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,919.89 : 15,075.18 = 7,353.61 : x
2. Step 2: Convert to fraction form
   10,919.89/15,075.18 = 7,353.61/x
3. Step 3: Cross multiply
   10,919.89x = 15,075.18 × 7,353.61
4. Step 4: Simplify right side
   10,919.89x = 110,856,994.40
5. Step 5: Solve for x
   x = 110,856,994.40/10,919.89
6. Step 6: Final answer
   x = 10,151.84