Finding the Fourth Proportional to 19,363.89, 26,719.98 and 10,864.87

Step by Step Solution

1. Step 1: Write the proportion equation
   19,363.89 : 26,719.98 = 10,864.87 : x
2. Step 2: Convert to fraction form
   19,363.89/26,719.98 = 10,864.87/x
3. Step 3: Cross multiply
   19,363.89x = 26,719.98 × 10,864.87
4. Step 4: Simplify right side
   19,363.89x = 290,309,001.56
5. Step 5: Solve for x
   x = 290,309,001.56/19,363.89
6. Step 6: Final answer
   x = 14,992.28