Finding the Fourth Proportional to 22,861.73, 31,547.91 and 12,788.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,861.73 : 31,547.91 = 12,788.22 : x
2. Step 2: Convert to fraction form
   22,861.73/31,547.91 = 12,788.22/x
3. Step 3: Cross multiply
   22,861.73x = 31,547.91 × 12,788.22
4. Step 4: Simplify right side
   22,861.73x = 403,441,613.62
5. Step 5: Solve for x
   x = 403,441,613.62/22,861.73
6. Step 6: Final answer
   x = 17,647.03