Finding the Fourth Proportional to 115,435,504.27, 159,303,574.56 and 65,874,891.25

Step by Step Solution

1. Step 1: Write the proportion equation
   115,435,504.27 : 159,303,574.56 = 65,874,891.25 : x
2. Step 2: Convert to fraction form
   115,435,504.27/159,303,574.56 = 65,874,891.25/x
3. Step 3: Cross multiply
   115,435,504.27x = 159,303,574.56 × 65,874,891.25
4. Step 4: Simplify right side
   115,435,504.27x = 10,494,105,649,876,266
5. Step 5: Solve for x
   x = 10,494,105,649,876,266/115,435,504.27
6. Step 6: Final answer
   x = 90,908,821.48