Finding the Fourth Proportional to 9,268,954,642.56, 12,791,068,561.98 and 5,039,868,018.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,268,954,642.56 : 12,791,068,561.98 = 5,039,868,018.72 : x
2. Step 2: Convert to fraction form
   9,268,954,642.56/12,791,068,561.98 = 5,039,868,018.72/x
3. Step 3: Cross multiply
   9,268,954,642.56x = 12,791,068,561.98 × 5,039,868,018.72
4. Step 4: Simplify right side
   9,268,954,642.56x = 64,465,297,370,777,821,184
5. Step 5: Solve for x
   x = 64,465,297,370,777,821,184/9,268,954,642.56
6. Step 6: Final answer
   x = 6,954,969,557.71