Finding the Fourth Proportional to 3,840.42, 5,300.82 and 3,608.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,840.42 : 5,300.82 = 3,608.10 : x
2. Step 2: Convert to fraction form
   3,840.42/5,300.82 = 3,608.10/x
3. Step 3: Cross multiply
   3,840.42x = 5,300.82 × 3,608.10
4. Step 4: Simplify right side
   3,840.42x = 19,125,888.64
5. Step 5: Solve for x
   x = 19,125,888.64/3,840.42
6. Step 6: Final answer
   x = 4,980.16