Finding the Fourth Proportional to 10,253.79, 14,057.95 and 10,066.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,253.79 : 14,057.95 = 10,066.96 : x
2. Step 2: Convert to fraction form
   10,253.79/14,057.95 = 10,066.96/x
3. Step 3: Cross multiply
   10,253.79x = 14,057.95 × 10,066.96
4. Step 4: Simplify right side
   10,253.79x = 141,520,820.33
5. Step 5: Solve for x
   x = 141,520,820.33/10,253.79
6. Step 6: Final answer
   x = 13,801.81