Finding the Fourth Proportional to 9,175,778,965.73, 12,657,990,958.49 and 5,792,880,865.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,175,778,965.73 : 12,657,990,958.49 = 5,792,880,865.25 : x
2. Step 2: Convert to fraction form
   9,175,778,965.73/12,657,990,958.49 = 5,792,880,865.25/x
3. Step 3: Cross multiply
   9,175,778,965.73x = 12,657,990,958.49 × 5,792,880,865.25
4. Step 4: Simplify right side
   9,175,778,965.73x = 73,326,233,615,851,978,752
5. Step 5: Solve for x
   x = 73,326,233,615,851,978,752/9,175,778,965.73
6. Step 6: Final answer
   x = 7,991,281,600.15