Finding the Fourth Proportional to 45,980.17, 68,933.60 and 42,289.81

Step by Step Solution

1. Step 1: Write the proportion equation
   45,980.17 : 68,933.60 = 42,289.81 : x
2. Step 2: Convert to fraction form
   45,980.17/68,933.60 = 42,289.81/x
3. Step 3: Cross multiply
   45,980.17x = 68,933.60 × 42,289.81
4. Step 4: Simplify right side
   45,980.17x = 2,915,188,621.42
5. Step 5: Solve for x
   x = 2,915,188,621.42/45,980.17
6. Step 6: Final answer
   x = 63,401.00