Finding the Fourth Proportional to 3,978,730,462.18, 5,490,551,851.86 and 2,194,545,598.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978,730,462.18 : 5,490,551,851.86 = 2,194,545,598.06 : x
2. Step 2: Convert to fraction form
   3,978,730,462.18/5,490,551,851.86 = 2,194,545,598.06/x
3. Step 3: Cross multiply
   3,978,730,462.18x = 5,490,551,851.86 × 2,194,545,598.06
4. Step 4: Simplify right side
   3,978,730,462.18x = 12,049,266,397,419,542,528
5. Step 5: Solve for x
   x = 12,049,266,397,419,542,528/3,978,730,462.18
6. Step 6: Final answer
   x = 3,028,419,872.11