Finding the Fourth Proportional to 35,442.42, 53,174.56 and 13,258.04

Step by Step Solution

1. Step 1: Write the proportion equation
   35,442.42 : 53,174.56 = 13,258.04 : x
2. Step 2: Convert to fraction form
   35,442.42/53,174.56 = 13,258.04/x
3. Step 3: Cross multiply
   35,442.42x = 53,174.56 × 13,258.04
4. Step 4: Simplify right side
   35,442.42x = 704,990,443.46
5. Step 5: Solve for x
   x = 704,990,443.46/35,442.42
6. Step 6: Final answer
   x = 19,891.15