Finding the Fourth Proportional to 22,196.20, 31,035.80 and 22,196.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,196.20 : 31,035.80 = 22,196.20 : x
2. Step 2: Convert to fraction form
   22,196.20/31,035.80 = 22,196.20/x
3. Step 3: Cross multiply
   22,196.20x = 31,035.80 × 22,196.20
4. Step 4: Simplify right side
   22,196.20x = 688,876,823.96
5. Step 5: Solve for x
   x = 688,876,823.96/22,196.20
6. Step 6: Final answer
   x = 31,035.80