Finding the Fourth Proportional to 17,949.91, 24,770.32 and 9,991.93

Step by Step Solution

1. Step 1: Write the proportion equation
   17,949.91 : 24,770.32 = 9,991.93 : x
2. Step 2: Convert to fraction form
   17,949.91/24,770.32 = 9,991.93/x
3. Step 3: Cross multiply
   17,949.91x = 24,770.32 × 9,991.93
4. Step 4: Simplify right side
   17,949.91x = 247,503,303.52
5. Step 5: Solve for x
   x = 247,503,303.52/17,949.91
6. Step 6: Final answer
   x = 13,788.55