Finding the Fourth Proportional to 65,451, 98,185.31 and 21,067.05

Step by Step Solution

1. Step 1: Write the proportion equation
   65,451 : 98,185.31 = 21,067.05 : x
2. Step 2: Convert to fraction form
   65,451/98,185.31 = 21,067.05/x
3. Step 3: Cross multiply
   65,451x = 98,185.31 × 21,067.05
4. Step 4: Simplify right side
   65,451x = 2,068,474,835.04
5. Step 5: Solve for x
   x = 2,068,474,835.04/65,451
6. Step 6: Final answer
   x = 31,603.41