Finding the Fourth Proportional to 22,991.34, 34,479.72 and 9,840.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,991.34 : 34,479.72 = 9,840.18 : x
2. Step 2: Convert to fraction form
   22,991.34/34,479.72 = 9,840.18/x
3. Step 3: Cross multiply
   22,991.34x = 34,479.72 × 9,840.18
4. Step 4: Simplify right side
   22,991.34x = 339,286,651.15
5. Step 5: Solve for x
   x = 339,286,651.15/22,991.34
6. Step 6: Final answer
   x = 14,757.15