Finding the Fourth Proportional to 73,960.64, 102,065.72 and 42,132.52

Step by Step Solution

1. Step 1: Write the proportion equation
   73,960.64 : 102,065.72 = 42,132.52 : x
2. Step 2: Convert to fraction form
   73,960.64/102,065.72 = 42,132.52/x
3. Step 3: Cross multiply
   73,960.64x = 102,065.72 × 42,132.52
4. Step 4: Simplify right side
   73,960.64x = 4,300,285,989.21
5. Step 5: Solve for x
   x = 4,300,285,989.21/73,960.64
6. Step 6: Final answer
   x = 58,142.90