Finding the Fourth Proportional to 91,967,205.09, 137,997,456.33 and 51,019,085.55

Step by Step Solution

1. Step 1: Write the proportion equation
   91,967,205.09 : 137,997,456.33 = 51,019,085.55 : x
2. Step 2: Convert to fraction form
   91,967,205.09/137,997,456.33 = 51,019,085.55/x
3. Step 3: Cross multiply
   91,967,205.09x = 137,997,456.33 × 51,019,085.55
4. Step 4: Simplify right side
   91,967,205.09x = 7,040,504,029,365,124
5. Step 5: Solve for x
   x = 7,040,504,029,365,124/91,967,205.09
6. Step 6: Final answer
   x = 76,554,506.83