Finding the Fourth Proportional to 12,338.78, 17,028.60 and 7,300.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,338.78 : 17,028.60 = 7,300.46 : x
2. Step 2: Convert to fraction form
   12,338.78/17,028.60 = 7,300.46/x
3. Step 3: Cross multiply
   12,338.78x = 17,028.60 × 7,300.46
4. Step 4: Simplify right side
   12,338.78x = 124,316,613.16
5. Step 5: Solve for x
   x = 124,316,613.16/12,338.78
6. Step 6: Final answer
   x = 10,075.28