Finding the Fourth Proportional to 65,698, 90,663.24 and 35,890

Step by Step Solution

1. Step 1: Write the proportion equation
   65,698 : 90,663.24 = 35,890 : x
2. Step 2: Convert to fraction form
   65,698/90,663.24 = 35,890/x
3. Step 3: Cross multiply
   65,698x = 90,663.24 × 35,890
4. Step 4: Simplify right side
   65,698x = 3,253,903,683.60
5. Step 5: Solve for x
   x = 3,253,903,683.60/65,698
6. Step 6: Final answer
   x = 49,528.20