Finding the Fourth Proportional to 141,921.63, 212,922.54 and 42,081.57

Step by Step Solution

1. Step 1: Write the proportion equation
   141,921.63 : 212,922.54 = 42,081.57 : x
2. Step 2: Convert to fraction form
   141,921.63/212,922.54 = 42,081.57/x
3. Step 3: Cross multiply
   141,921.63x = 212,922.54 × 42,081.57
4. Step 4: Simplify right side
   141,921.63x = 8,960,114,771.59
5. Step 5: Solve for x
   x = 8,960,114,771.59/141,921.63
6. Step 6: Final answer
   x = 63,134.24