Finding the Fourth Proportional to 65,796.86, 98,708.61 and 21,411.70

Step by Step Solution

1. Step 1: Write the proportion equation
   65,796.86 : 98,708.61 = 21,411.70 : x
2. Step 2: Convert to fraction form
   65,796.86/98,708.61 = 21,411.70/x
3. Step 3: Cross multiply
   65,796.86x = 98,708.61 × 21,411.70
4. Step 4: Simplify right side
   65,796.86x = 2,113,519,144.74
5. Step 5: Solve for x
   x = 2,113,519,144.74/65,796.86
6. Step 6: Final answer
   x = 32,121.88