Finding the Fourth Proportional to 17,948.90, 24,769.46 and 9,991.82

Step by Step Solution

1. Step 1: Write the proportion equation
   17,948.90 : 24,769.46 = 9,991.82 : x
2. Step 2: Convert to fraction form
   17,948.90/24,769.46 = 9,991.82/x
3. Step 3: Cross multiply
   17,948.90x = 24,769.46 × 9,991.82
4. Step 4: Simplify right side
   17,948.90x = 247,491,985.82
5. Step 5: Solve for x
   x = 247,491,985.82/17,948.90
6. Step 6: Final answer
   x = 13,788.70