Finding the Fourth Proportional to 65,796.83, 98,671.94 and 21,415.31

Step by Step Solution

1. Step 1: Write the proportion equation
   65,796.83 : 98,671.94 = 21,415.31 : x
2. Step 2: Convert to fraction form
   65,796.83/98,671.94 = 21,415.31/x
3. Step 3: Cross multiply
   65,796.83x = 98,671.94 × 21,415.31
4. Step 4: Simplify right side
   65,796.83x = 2,113,090,076.32
5. Step 5: Solve for x
   x = 2,113,090,076.32/65,796.83
6. Step 6: Final answer
   x = 32,115.38