Finding the Fourth Proportional to 13,123.51, 19,698.71 and 10,233.43

Step by Step Solution

1. Step 1: Write the proportion equation
   13,123.51 : 19,698.71 = 10,233.43 : x
2. Step 2: Convert to fraction form
   13,123.51/19,698.71 = 10,233.43/x
3. Step 3: Cross multiply
   13,123.51x = 19,698.71 × 10,233.43
4. Step 4: Simplify right side
   13,123.51x = 201,585,318.71
5. Step 5: Solve for x
   x = 201,585,318.71/13,123.51
6. Step 6: Final answer
   x = 15,360.63