Finding the Fourth Proportional to 10,658.19, 14,727.86 and 10,146.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,658.19 : 14,727.86 = 10,146.07 : x
2. Step 2: Convert to fraction form
   10,658.19/14,727.86 = 10,146.07/x
3. Step 3: Cross multiply
   10,658.19x = 14,727.86 × 10,146.07
4. Step 4: Simplify right side
   10,658.19x = 149,429,898.51
5. Step 5: Solve for x
   x = 149,429,898.51/10,658.19
6. Step 6: Final answer
   x = 14,020.19