Finding the Fourth Proportional to 10,864.40, 14,994.39 and 7,849.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,864.40 : 14,994.39 = 7,849.28 : x
2. Step 2: Convert to fraction form
   10,864.40/14,994.39 = 7,849.28/x
3. Step 3: Cross multiply
   10,864.40x = 14,994.39 × 7,849.28
4. Step 4: Simplify right side
   10,864.40x = 117,695,051.32
5. Step 5: Solve for x
   x = 117,695,051.32/10,864.40
6. Step 6: Final answer
   x = 10,833.10