Finding the Fourth Proportional to 65,550.72, 98,315.49 and 21,177.69

Step by Step Solution

1. Step 1: Write the proportion equation
   65,550.72 : 98,315.49 = 21,177.69 : x
2. Step 2: Convert to fraction form
   65,550.72/98,315.49 = 21,177.69/x
3. Step 3: Cross multiply
   65,550.72x = 98,315.49 × 21,177.69
4. Step 4: Simplify right side
   65,550.72x = 2,082,094,969.42
5. Step 5: Solve for x
   x = 2,082,094,969.42/65,550.72
6. Step 6: Final answer
   x = 31,763.11