Finding the Fourth Proportional to 2,992,896,018.72, 4,489,583,373.72 and 1,026,957,978.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,992,896,018.72 : 4,489,583,373.72 = 1,026,957,978.72 : x
2. Step 2: Convert to fraction form
   2,992,896,018.72/4,489,583,373.72 = 1,026,957,978.72/x
3. Step 3: Cross multiply
   2,992,896,018.72x = 4,489,583,373.72 × 1,026,957,978.72
4. Step 4: Simplify right side
   2,992,896,018.72x = 4,610,613,466,770,409,984
5. Step 5: Solve for x
   x = 4,610,613,466,770,409,984/2,992,896,018.72
6. Step 6: Final answer
   x = 1,540,519,095.19