Finding the Fourth Proportional to 19,761.98, 29,598.46 and 13,865.15

Step by Step Solution

1. Step 1: Write the proportion equation
   19,761.98 : 29,598.46 = 13,865.15 : x
2. Step 2: Convert to fraction form
   19,761.98/29,598.46 = 13,865.15/x
3. Step 3: Cross multiply
   19,761.98x = 29,598.46 × 13,865.15
4. Step 4: Simplify right side
   19,761.98x = 410,387,127.00
5. Step 5: Solve for x
   x = 410,387,127.00/19,761.98
6. Step 6: Final answer
   x = 20,766.50