Finding the Fourth Proportional to 47,419.02, 65,438.82 and 30,681.18

Step by Step Solution

1. Step 1: Write the proportion equation
   47,419.02 : 65,438.82 = 30,681.18 : x
2. Step 2: Convert to fraction form
   47,419.02/65,438.82 = 30,681.18/x
3. Step 3: Cross multiply
   47,419.02x = 65,438.82 × 30,681.18
4. Step 4: Simplify right side
   47,419.02x = 2,007,740,215.41
5. Step 5: Solve for x
   x = 2,007,740,215.41/47,419.02
6. Step 6: Final answer
   x = 42,340.40