Finding the Fourth Proportional to 115,435,503.27, 159,303,573.18 and 65,874,890.25

Step by Step Solution

1. Step 1: Write the proportion equation
   115,435,503.27 : 159,303,573.18 = 65,874,890.25 : x
2. Step 2: Convert to fraction form
   115,435,503.27/159,303,573.18 = 65,874,890.25/x
3. Step 3: Cross multiply
   115,435,503.27x = 159,303,573.18 × 65,874,890.25
4. Step 4: Simplify right side
   115,435,503.27x = 10,494,105,399,665,344
5. Step 5: Solve for x
   x = 10,494,105,399,665,344/115,435,503.27
6. Step 6: Final answer
   x = 90,908,820.10