Finding the Fourth Proportional to 141,414.05, 212,222.12 and 51,456.53

Step by Step Solution

1. Step 1: Write the proportion equation
   141,414.05 : 212,222.12 = 51,456.53 : x
2. Step 2: Convert to fraction form
   141,414.05/212,222.12 = 51,456.53/x
3. Step 3: Cross multiply
   141,414.05x = 212,222.12 × 51,456.53
4. Step 4: Simplify right side
   141,414.05x = 10,920,212,566.05
5. Step 5: Solve for x
   x = 10,920,212,566.05/141,414.05
6. Step 6: Final answer
   x = 77,221.56