Finding the Fourth Proportional to 10,253.79, 14,142.06 and 7,736.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,253.79 : 14,142.06 = 7,736.31 : x
2. Step 2: Convert to fraction form
   10,253.79/14,142.06 = 7,736.31/x
3. Step 3: Cross multiply
   10,253.79x = 14,142.06 × 7,736.31
4. Step 4: Simplify right side
   10,253.79x = 109,407,360.20
5. Step 5: Solve for x
   x = 109,407,360.20/10,253.79
6. Step 6: Final answer
   x = 10,669.94