Finding the Fourth Proportional to 1,608,520,304.99, 2,412,918,967.50 and 443,988,994.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,608,520,304.99 : 2,412,918,967.50 = 443,988,994.43 : x
2. Step 2: Convert to fraction form
   1,608,520,304.99/2,412,918,967.50 = 443,988,994.43/x
3. Step 3: Cross multiply
   1,608,520,304.99x = 2,412,918,967.50 × 443,988,994.43
4. Step 4: Simplify right side
   1,608,520,304.99x = 1,071,309,466,027,431,168
5. Step 5: Solve for x
   x = 1,071,309,466,027,431,168/1,608,520,304.99
6. Step 6: Final answer
   x = 666,021,723.63