Finding the Fourth Proportional to 65,988.27, 98,961.57 and 21,604.82

Step by Step Solution

1. Step 1: Write the proportion equation
   65,988.27 : 98,961.57 = 21,604.82 : x
2. Step 2: Convert to fraction form
   65,988.27/98,961.57 = 21,604.82/x
3. Step 3: Cross multiply
   65,988.27x = 98,961.57 × 21,604.82
4. Step 4: Simplify right side
   65,988.27x = 2,138,046,411.96
5. Step 5: Solve for x
   x = 2,138,046,411.96/65,988.27
6. Step 6: Final answer
   x = 32,400.40