Finding the Fourth Proportional to 17,429.84, 24,054.60 and 9,978.32

Step by Step Solution

1. Step 1: Write the proportion equation
   17,429.84 : 24,054.60 = 9,978.32 : x
2. Step 2: Convert to fraction form
   17,429.84/24,054.60 = 9,978.32/x
3. Step 3: Cross multiply
   17,429.84x = 24,054.60 × 9,978.32
4. Step 4: Simplify right side
   17,429.84x = 240,024,496.27
5. Step 5: Solve for x
   x = 240,024,496.27/17,429.84
6. Step 6: Final answer
   x = 13,770.89