Finding the Fourth Proportional to 11,380.16, 17,075.28 and 4,810.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,380.16 : 17,075.28 = 4,810.88 : x
2. Step 2: Convert to fraction form
   11,380.16/17,075.28 = 4,810.88/x
3. Step 3: Cross multiply
   11,380.16x = 17,075.28 × 4,810.88
4. Step 4: Simplify right side
   11,380.16x = 82,147,123.05
5. Step 5: Solve for x
   x = 82,147,123.05/11,380.16
6. Step 6: Final answer
   x = 7,218.45