Finding the Fourth Proportional to 22,612.22, 31,196.47 and 13,656.45

Step by Step Solution

1. Step 1: Write the proportion equation
   22,612.22 : 31,196.47 = 13,656.45 : x
2. Step 2: Convert to fraction form
   22,612.22/31,196.47 = 13,656.45/x
3. Step 3: Cross multiply
   22,612.22x = 31,196.47 × 13,656.45
4. Step 4: Simplify right side
   22,612.22x = 426,033,032.73
5. Step 5: Solve for x
   x = 426,033,032.73/22,612.22
6. Step 6: Final answer
   x = 18,840.83