Finding the Fourth Proportional to 1,404,731,142.27, 1,938,648,019.11 and 778,396,037.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404,731,142.27 : 1,938,648,019.11 = 778,396,037.31 : x
2. Step 2: Convert to fraction form
   1,404,731,142.27/1,938,648,019.11 = 778,396,037.31/x
3. Step 3: Cross multiply
   1,404,731,142.27x = 1,938,648,019.11 × 778,396,037.31
4. Step 4: Simplify right side
   1,404,731,142.27x = 1,509,035,935,814,105,088
5. Step 5: Solve for x
   x = 1,509,035,935,814,105,088/1,404,731,142.27
6. Step 6: Final answer
   x = 1,074,252,496.02