Finding the Fourth Proportional to 22,315.02, 30,791.25 and 12,881.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,315.02 : 30,791.25 = 12,881.76 : x
2. Step 2: Convert to fraction form
   22,315.02/30,791.25 = 12,881.76/x
3. Step 3: Cross multiply
   22,315.02x = 30,791.25 × 12,881.76
4. Step 4: Simplify right side
   22,315.02x = 396,645,492.60
5. Step 5: Solve for x
   x = 396,645,492.60/22,315.02
6. Step 6: Final answer
   x = 17,774.82