Finding the Fourth Proportional to 10,863.05, 14,978.32 and 10,075.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,863.05 : 14,978.32 = 10,075.73 : x
2. Step 2: Convert to fraction form
   10,863.05/14,978.32 = 10,075.73/x
3. Step 3: Cross multiply
   10,863.05x = 14,978.32 × 10,075.73
4. Step 4: Simplify right side
   10,863.05x = 150,917,408.09
5. Step 5: Solve for x
   x = 150,917,408.09/10,863.05
6. Step 6: Final answer
   x = 13,892.74