Finding the Fourth Proportional to 10,093.79, 15,142.40 and 3,429.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,093.79 : 15,142.40 = 3,429.57 : x
2. Step 2: Convert to fraction form
   10,093.79/15,142.40 = 3,429.57/x
3. Step 3: Cross multiply
   10,093.79x = 15,142.40 × 3,429.57
4. Step 4: Simplify right side
   10,093.79x = 51,931,903.62
5. Step 5: Solve for x
   x = 51,931,903.62/10,093.79
6. Step 6: Final answer
   x = 5,144.94