Finding the Fourth Proportional to 1,404,731,141.76, 1,938,648,018.42 and 778,396,036.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404,731,141.76 : 1,938,648,018.42 = 778,396,036.80 : x
2. Step 2: Convert to fraction form
   1,404,731,141.76/1,938,648,018.42 = 778,396,036.80/x
3. Step 3: Cross multiply
   1,404,731,141.76x = 1,938,648,018.42 × 778,396,036.80
4. Step 4: Simplify right side
   1,404,731,141.76x = 1,509,035,934,288,301,312
5. Step 5: Solve for x
   x = 1,509,035,934,288,301,312/1,404,731,141.76
6. Step 6: Final answer
   x = 1,074,252,495.32