Finding the Fourth Proportional to 213,625, 320,441.82 and 65,881

Step by Step Solution

1. Step 1: Write the proportion equation
   213,625 : 320,441.82 = 65,881 : x
2. Step 2: Convert to fraction form
   213,625/320,441.82 = 65,881/x
3. Step 3: Cross multiply
   213,625x = 320,441.82 × 65,881
4. Step 4: Simplify right side
   213,625x = 21,111,027,543.42
5. Step 5: Solve for x
   x = 21,111,027,543.42/213,625
6. Step 6: Final answer
   x = 98,822.83