Finding the Fourth Proportional to 14,131.78, 19,501.08 and 7,843.78

Step by Step Solution

1. Step 1: Write the proportion equation
   14,131.78 : 19,501.08 = 7,843.78 : x
2. Step 2: Convert to fraction form
   14,131.78/19,501.08 = 7,843.78/x
3. Step 3: Cross multiply
   14,131.78x = 19,501.08 × 7,843.78
4. Step 4: Simplify right side
   14,131.78x = 152,962,181.28
5. Step 5: Solve for x
   x = 152,962,181.28/14,131.78
6. Step 6: Final answer
   x = 10,823.99