Finding the Fourth Proportional to 12,878.34, 19,291.54 and 10,792.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,878.34 : 19,291.54 = 10,792.50 : x
2. Step 2: Convert to fraction form
   12,878.34/19,291.54 = 10,792.50/x
3. Step 3: Cross multiply
   12,878.34x = 19,291.54 × 10,792.50
4. Step 4: Simplify right side
   12,878.34x = 208,203,945.45
5. Step 5: Solve for x
   x = 208,203,945.45/12,878.34
6. Step 6: Final answer
   x = 16,166.99