Finding the Fourth Proportional to 65,932.38, 98,910.72 and 21,561.59

Step by Step Solution

1. Step 1: Write the proportion equation
   65,932.38 : 98,910.72 = 21,561.59 : x
2. Step 2: Convert to fraction form
   65,932.38/98,910.72 = 21,561.59/x
3. Step 3: Cross multiply
   65,932.38x = 98,910.72 × 21,561.59
4. Step 4: Simplify right side
   65,932.38x = 2,132,672,638.52
5. Step 5: Solve for x
   x = 2,132,672,638.52/65,932.38
6. Step 6: Final answer
   x = 32,346.36