Finding the Fourth Proportional to 1,780,091,261.52, 2,456,521,993.80 and 987,117,642.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,780,091,261.52 : 2,456,521,993.80 = 987,117,642.96 : x
2. Step 2: Convert to fraction form
   1,780,091,261.52/2,456,521,993.80 = 987,117,642.96/x
3. Step 3: Cross multiply
   1,780,091,261.52x = 2,456,521,993.80 × 987,117,642.96
4. Step 4: Simplify right side
   1,780,091,261.52x = 2,424,876,200,399,256,064
5. Step 5: Solve for x
   x = 2,424,876,200,399,256,064/1,780,091,261.52
6. Step 6: Final answer
   x = 1,362,220,158.49