Finding the Fourth Proportional to 49,147,647.80, 73,863,189.30 and 42,912,073.40

Step by Step Solution

1. Step 1: Write the proportion equation
   49,147,647.80 : 73,863,189.30 = 42,912,073.40 : x
2. Step 2: Convert to fraction form
   49,147,647.80/73,863,189.30 = 42,912,073.40/x
3. Step 3: Cross multiply
   49,147,647.80x = 73,863,189.30 × 42,912,073.40
4. Step 4: Simplify right side
   49,147,647.80x = 3,169,622,600,799,694.50
5. Step 5: Solve for x
   x = 3,169,622,600,799,694.50/49,147,647.80
6. Step 6: Final answer
   x = 64,491,847.38