Finding the Fourth Proportional to 51,178,065.97, 76,780,563.59 and 18,391,947.07

Step by Step Solution

1. Step 1: Write the proportion equation
   51,178,065.97 : 76,780,563.59 = 18,391,947.07 : x
2. Step 2: Convert to fraction form
   51,178,065.97/76,780,563.59 = 18,391,947.07/x
3. Step 3: Cross multiply
   51,178,065.97x = 76,780,563.59 × 18,391,947.07
4. Step 4: Simplify right side
   51,178,065.97x = 1,412,144,061,552,049.25
5. Step 5: Solve for x
   x = 1,412,144,061,552,049.25/51,178,065.97
6. Step 6: Final answer
   x = 27,592,759.41