Finding the Fourth Proportional to 56,540,550,978.72, 78,029,451,236.88 and 31,165,965,079.20

Step by Step Solution

1. Step 1: Write the proportion equation
   56,540,550,978.72 : 78,029,451,236.88 = 31,165,965,079.20 : x
2. Step 2: Convert to fraction form
   56,540,550,978.72/78,029,451,236.88 = 31,165,965,079.20/x
3. Step 3: Cross multiply
   56,540,550,978.72x = 78,029,451,236.88 × 31,165,965,079.20
4. Step 4: Simplify right side
   56,540,550,978.72x = 2,431,863,152,397,741,719,552
5. Step 5: Solve for x
   x = 2,431,863,152,397,741,719,552/56,540,550,978.72
6. Step 6: Final answer
   x = 43,010,956,036.01