Finding the Fourth Proportional to 141,915.57, 212,902.56 and 57,675.54

Step by Step Solution

1. Step 1: Write the proportion equation
   141,915.57 : 212,902.56 = 57,675.54 : x
2. Step 2: Convert to fraction form
   141,915.57/212,902.56 = 57,675.54/x
3. Step 3: Cross multiply
   141,915.57x = 212,902.56 × 57,675.54
4. Step 4: Simplify right side
   141,915.57x = 12,279,270,115.38
5. Step 5: Solve for x
   x = 12,279,270,115.38/141,915.57
6. Step 6: Final answer
   x = 86,525.18