Finding the Fourth Proportional to 72,782,065,743.05, 109,178,587,840.59 and 21,726,331,368.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,782,065,743.05 : 109,178,587,840.59 = 21,726,331,368.72 : x
2. Step 2: Convert to fraction form
   72,782,065,743.05/109,178,587,840.59 = 21,726,331,368.72/x
3. Step 3: Cross multiply
   72,782,065,743.05x = 109,178,587,840.59 × 21,726,331,368.72
4. Step 4: Simplify right side
   72,782,065,743.05x = 2,372,050,177,793,562,509,312
5. Step 5: Solve for x
   x = 2,372,050,177,793,562,509,312/72,782,065,743.05
6. Step 6: Final answer
   x = 32,591,135,653.78