Finding the Fourth Proportional to 10,013.88, 15,021.83 and 3,439.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,013.88 : 15,021.83 = 3,439.18 : x
2. Step 2: Convert to fraction form
   10,013.88/15,021.83 = 3,439.18/x
3. Step 3: Cross multiply
   10,013.88x = 15,021.83 × 3,439.18
4. Step 4: Simplify right side
   10,013.88x = 51,662,748.34
5. Step 5: Solve for x
   x = 51,662,748.34/10,013.88
6. Step 6: Final answer
   x = 5,159.11