Finding the Fourth Proportional to 60,731, 91,143.54 and 42,141.56

Step by Step Solution

1. Step 1: Write the proportion equation
   60,731 : 91,143.54 = 42,141.56 : x
2. Step 2: Convert to fraction form
   60,731/91,143.54 = 42,141.56/x
3. Step 3: Cross multiply
   60,731x = 91,143.54 × 42,141.56
4. Step 4: Simplify right side
   60,731x = 3,840,930,959.52
5. Step 5: Solve for x
   x = 3,840,930,959.52/60,731
6. Step 6: Final answer
   x = 63,244.98