Finding the Fourth Proportional to 20,061.98, 27,685.29 and 11,109.99

Step by Step Solution

1. Step 1: Write the proportion equation
   20,061.98 : 27,685.29 = 11,109.99 : x
2. Step 2: Convert to fraction form
   20,061.98/27,685.29 = 11,109.99/x
3. Step 3: Cross multiply
   20,061.98x = 27,685.29 × 11,109.99
4. Step 4: Simplify right side
   20,061.98x = 307,583,440.53
5. Step 5: Solve for x
   x = 307,583,440.53/20,061.98
6. Step 6: Final answer
   x = 15,331.66