Finding the Fourth Proportional to 42,923,154,627.30, 64,394,334,643.10 and 13,079,821,421.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42,923,154,627.30 : 64,394,334,643.10 = 13,079,821,421.69 : x
2. Step 2: Convert to fraction form
   42,923,154,627.30/64,394,334,643.10 = 13,079,821,421.69/x
3. Step 3: Cross multiply
   42,923,154,627.30x = 64,394,334,643.10 × 13,079,821,421.69
4. Step 4: Simplify right side
   42,923,154,627.30x = 842,266,397,699,906,469,888
5. Step 5: Solve for x
   x = 842,266,397,699,906,469,888/42,923,154,627.30
6. Step 6: Final answer
   x = 19,622,658,330.06