Finding the Fourth Proportional to 17,688.06, 24,413 and 10,139.45

Step by Step Solution

1. Step 1: Write the proportion equation
   17,688.06 : 24,413 = 10,139.45 : x
2. Step 2: Convert to fraction form
   17,688.06/24,413 = 10,139.45/x
3. Step 3: Cross multiply
   17,688.06x = 24,413 × 10,139.45
4. Step 4: Simplify right side
   17,688.06x = 247,534,392.85
5. Step 5: Solve for x
   x = 247,534,392.85/17,688.06
6. Step 6: Final answer
   x = 13,994.43