Finding the Fourth Proportional to 42,923,472,494.67, 64,394,811,019.58 and 13,080,139,287.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,923,472,494.67 : 64,394,811,019.58 = 13,080,139,287.48 : x
2. Step 2: Convert to fraction form
   42,923,472,494.67/64,394,811,019.58 = 13,080,139,287.48/x
3. Step 3: Cross multiply
   42,923,472,494.67x = 64,394,811,019.58 × 13,080,139,287.48
4. Step 4: Simplify right side
   42,923,472,494.67x = 842,293,097,526,992,961,536
5. Step 5: Solve for x
   x = 842,293,097,526,992,961,536/42,923,472,494.67
6. Step 6: Final answer
   x = 19,623,135,048.81