Finding the Fourth Proportional to 65,777.85, 98,667.99 and 21,404.43

Step by Step Solution

1. Step 1: Write the proportion equation
   65,777.85 : 98,667.99 = 21,404.43 : x
2. Step 2: Convert to fraction form
   65,777.85/98,667.99 = 21,404.43/x
3. Step 3: Cross multiply
   65,777.85x = 98,667.99 × 21,404.43
4. Step 4: Simplify right side
   65,777.85x = 2,111,932,085.20
5. Step 5: Solve for x
   x = 2,111,932,085.20/65,777.85
6. Step 6: Final answer
   x = 32,107.04