Finding the Fourth Proportional to 22,986.42, 31,719.32 and 12,914.08

Step by Step Solution

1. Step 1: Write the proportion equation
   22,986.42 : 31,719.32 = 12,914.08 : x
2. Step 2: Convert to fraction form
   22,986.42/31,719.32 = 12,914.08/x
3. Step 3: Cross multiply
   22,986.42x = 31,719.32 × 12,914.08
4. Step 4: Simplify right side
   22,986.42x = 409,625,836.03
5. Step 5: Solve for x
   x = 409,625,836.03/22,986.42
6. Step 6: Final answer
   x = 17,820.34