Finding the Fourth Proportional to 22,449.06, 30,978.72 and 12,882.33

Step by Step Solution

1. Step 1: Write the proportion equation
   22,449.06 : 30,978.72 = 12,882.33 : x
2. Step 2: Convert to fraction form
   22,449.06/30,978.72 = 12,882.33/x
3. Step 3: Cross multiply
   22,449.06x = 30,978.72 × 12,882.33
4. Step 4: Simplify right side
   22,449.06x = 399,078,094.02
5. Step 5: Solve for x
   x = 399,078,094.02/22,449.06
6. Step 6: Final answer
   x = 17,777.05