Finding the Fourth Proportional to 2,019,928,479.14, 3,030,181,885.02 and 621,030,212.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019,928,479.14 : 3,030,181,885.02 = 621,030,212.12 : x
2. Step 2: Convert to fraction form
   2,019,928,479.14/3,030,181,885.02 = 621,030,212.12/x
3. Step 3: Cross multiply
   2,019,928,479.14x = 3,030,181,885.02 × 621,030,212.12
4. Step 4: Simplify right side
   2,019,928,479.14x = 1,881,834,498,816,152,064
5. Step 5: Solve for x
   x = 1,881,834,498,816,152,064/2,019,928,479.14
6. Step 6: Final answer
   x = 931,634,222.82