Finding the Fourth Proportional to 17,978.45, 24,810.18 and 10,429.16

Step by Step Solution

1. Step 1: Write the proportion equation
   17,978.45 : 24,810.18 = 10,429.16 : x
2. Step 2: Convert to fraction form
   17,978.45/24,810.18 = 10,429.16/x
3. Step 3: Cross multiply
   17,978.45x = 24,810.18 × 10,429.16
4. Step 4: Simplify right side
   17,978.45x = 258,749,336.85
5. Step 5: Solve for x
   x = 258,749,336.85/17,978.45
6. Step 6: Final answer
   x = 14,392.19