Finding the Fourth Proportional to 141,940.72, 212,874.75 and 42,077.56

Step by Step Solution

1. Step 1: Write the proportion equation
   141,940.72 : 212,874.75 = 42,077.56 : x
2. Step 2: Convert to fraction form
   141,940.72/212,874.75 = 42,077.56/x
3. Step 3: Cross multiply
   141,940.72x = 212,874.75 × 42,077.56
4. Step 4: Simplify right side
   141,940.72x = 8,957,250,065.61
5. Step 5: Solve for x
   x = 8,957,250,065.61/141,940.72
6. Step 6: Final answer
   x = 63,105.57