Finding the Fourth Proportional to 21,061.65, 31,567.35 and 9,801.84

Step by Step Solution

1. Step 1: Write the proportion equation
   21,061.65 : 31,567.35 = 9,801.84 : x
2. Step 2: Convert to fraction form
   21,061.65/31,567.35 = 9,801.84/x
3. Step 3: Cross multiply
   21,061.65x = 31,567.35 × 9,801.84
4. Step 4: Simplify right side
   21,061.65x = 309,418,113.92
5. Step 5: Solve for x
   x = 309,418,113.92/21,061.65
6. Step 6: Final answer
   x = 14,691.07