Finding the Fourth Proportional to 16,019.10, 23,999.85 and 13,715.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,019.10 : 23,999.85 = 13,715.10 : x
2. Step 2: Convert to fraction form
   16,019.10/23,999.85 = 13,715.10/x
3. Step 3: Cross multiply
   16,019.10x = 23,999.85 × 13,715.10
4. Step 4: Simplify right side
   16,019.10x = 329,160,342.74
5. Step 5: Solve for x
   x = 329,160,342.74/16,019.10
6. Step 6: Final answer
   x = 20,547.99