Finding the Fourth Proportional to 19,825, 27,355.99 and 10,870.15

Step by Step Solution

1. Step 1: Write the proportion equation
   19,825 : 27,355.99 = 10,870.15 : x
2. Step 2: Convert to fraction form
   19,825/27,355.99 = 10,870.15/x
3. Step 3: Cross multiply
   19,825x = 27,355.99 × 10,870.15
4. Step 4: Simplify right side
   19,825x = 297,363,714.70
5. Step 5: Solve for x
   x = 297,363,714.70/19,825
6. Step 6: Final answer
   x = 14,999.43