Finding the Fourth Proportional to 65,443.33, 98,144.18 and 21,059.74

Step by Step Solution

1. Step 1: Write the proportion equation
   65,443.33 : 98,144.18 = 21,059.74 : x
2. Step 2: Convert to fraction form
   65,443.33/98,144.18 = 21,059.74/x
3. Step 3: Cross multiply
   65,443.33x = 98,144.18 × 21,059.74
4. Step 4: Simplify right side
   65,443.33x = 2,066,890,317.29
5. Step 5: Solve for x
   x = 2,066,890,317.29/65,443.33
6. Step 6: Final answer
   x = 31,582.91