Finding the Fourth Proportional to 28,324,523.82, 42,325,541.82 and 21,267,634.56

Step by Step Solution

1. Step 1: Write the proportion equation
   28,324,523.82 : 42,325,541.82 = 21,267,634.56 : x
2. Step 2: Convert to fraction form
   28,324,523.82/42,325,541.82 = 21,267,634.56/x
3. Step 3: Cross multiply
   28,324,523.82x = 42,325,541.82 × 21,267,634.56
4. Step 4: Simplify right side
   28,324,523.82x = 900,164,155,981,757.25
5. Step 5: Solve for x
   x = 900,164,155,981,757.25/28,324,523.82
6. Step 6: Final answer
   x = 31,780,380.91