Finding the Fourth Proportional to 35,787.34, 53,648.16 and 12,397.42

Step by Step Solution

1. Step 1: Write the proportion equation
   35,787.34 : 53,648.16 = 12,397.42 : x
2. Step 2: Convert to fraction form
   35,787.34/53,648.16 = 12,397.42/x
3. Step 3: Cross multiply
   35,787.34x = 53,648.16 × 12,397.42
4. Step 4: Simplify right side
   35,787.34x = 665,098,771.75
5. Step 5: Solve for x
   x = 665,098,771.75/35,787.34
6. Step 6: Final answer
   x = 18,584.75